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<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Registration Statement No.&nbsp;333-&nbsp;&nbsp;&nbsp;</B>
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt; margin-top: 3pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 0pt"><B>REGISTRATION STATEMENT<BR>
UNDER<BR>
THE SECURITIES ACT OF 1933</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>First Potomac Realty Trust</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<TR></TR>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Maryland</B><BR>
(State or other jurisdiction of <BR>
incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>37-1470730</B><BR>
(I.R.S. Employer Identification No.)</TD>
</TR>
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</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>7600 Wisconsin Avenue, 11</B><SUP style="FONT-size: 85%; vertical-align: text-top"><B>th</b></SUP><b> Floor<BR>
Bethesda, Maryland 20814</B><BR>
(Address of principal executive offices including zip code)<BR><BR>
<B>First Potomac Realty Trust 2009 Equity Compensation Plan</B><BR>
(Full title of the plan)<BR><BR>
<B>Joel F. Bonder<BR>
Executive Vice President and General Counsel<BR>
First Potomac Realty Trust<BR>
7600 Wisconsin Avenue, 11</B><SUP style="FONT-size: 85%; vertical-align: text-top"><B>th</b></SUP><b> Floor<BR>
Bethesda, Maryland 20814<BR>
(301)&nbsp;986-9200</B><BR>
(Name and address, including zip code, and telephone number, including area code, of agent for service)<BR><BR>
<I>Copy to:</I><BR>
<B>David P. Slotkin<BR>
Hogan Lovells US LLP<BR>
Columbia Square<BR>
555 Thirteenth Street, NW<BR>
Washington, DC 20004<BR>
(202)&nbsp;637-5600</B></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large accelerated
filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the Exchange Act.
</DIV>



<TABLE width="100%" style="FONT-size: 10pt; margin-top: 0pt">
<TR VALIGN="TOP"><TD>Large accelerated filer&nbsp;<FONT style="font-family: Wingdings">&#111;</FONT></TD>
<TD align="center">Accelerated
filer&nbsp;<FONT style="font-family: Wingdings">&#254;</FONT>&nbsp;</TD>
<TD align="center">Non-accelerated filer&nbsp;<FONT style="font-family: Wingdings">&#111;</FONT><BR>(Do not check if a smaller reporting company)</TD><TD align="right">Smaller reporting company&nbsp;<FONT style="font-family: Wingdings">&#111;</FONT></TD>
</TR></TABLE>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>CALCULATION OF REGISTRATION FEE</B></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom" style="font-size: 1px">
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    <TD width="16%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="16%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="16%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="16%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="16%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>offering price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>aggregate</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>to be registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>registered</B><SUP style="FONT-size: 85%; vertical-align: text-top"><B>(1)</B></SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>per share</B><SUP style="FONT-size: 85%; vertical-align: text-top"><B>(2)</B></SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>offering price</B><SUP style="FONT-size: 85%; vertical-align: text-top"><B>(2)</B></SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>registration fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD align="left" valign="top" style="border-top: 2px solid #000000">Common shares of <BR>
beneficial interest,<BR>
$0.001 par value per <BR>
share
</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">2,250,000 shares
</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$15.92
</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$35,820,000.00
</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$4,158.70</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

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</TABLE>
</DIV>


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 6pt; width: 18%; border-top: 0px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96%"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;), this registration statement shall also cover an indeterminate number of
additional common shares of beneficial interest (&#147;common shares&#148;) that become issuable under the First Potomac Realty Trust 2009 Equity Compensation Plan (the &#147;Plan&#148;)
by reason of any stock dividend, stock split, recapitalization, or other similar transaction effected without the receipt of consideration which results in an
increase in the number of the Registrant&#146;s outstanding common shares.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purpose of computing the registration fee. In accordance with Rules 457(c) and 457(h) under the Securities Act, the maximum offering price
per share and maximum aggregate offering price shown are based upon the average of the high and low sales prices reported for the Registrant&#146;s common shares on the
New York Stock Exchange on February&nbsp;7, 2011, which was $15.92 per share.</TD>
</TR>

</TABLE>



<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">








<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXPLANATORY NOTE</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;First Potomac Realty Trust (the &#147;Company&#148;) is hereby registering 2,250,000 additional common
shares, par value $0.001, for issuance under the Company&#146;s 2009 Equity Compensation Plan, as
amended (the &#147;2009 Equity Plan&#148;). The prior registration statement on Form S-8 (Registration No.
333-161403, referred to as the &#147;Prior 2009 Equity Plan Registration Statement&#148;), as filed with the
U.S. Securities and Exchange Commission (the &#147;SEC&#148;) on August&nbsp;17, 2009, is currently effective and,
as permitted by General Instruction E to Form S-8, the contents of the Prior 2009 Equity Plan
Registration Statement are incorporated herein by reference, except to the extent supplemented,
amended or superseded by the information set forth herein.
</DIV>







<!-- link1 "PART I<BR> INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS" -->
<DIV align="left"><A NAME="W81507000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I<BR>
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The document(s) containing the information specified in this Part&nbsp;I will be sent or given to
participants under the First Potomac Realty Trust 2009 Equity Compensation Plan as specified by
Rule&nbsp;428(b)(1) under the Securities Act. In accordance with the instructions to Part&nbsp;I of Form S-8,
such documents will not be filed with the SEC either as part of this Registration Statement or as
prospectuses or prospectus supplements pursuant to Rule&nbsp;424 promulgated under the Securities Act.
These documents and the documents incorporated by reference in this Registration Statement pursuant
to Item&nbsp;3 of Part&nbsp;II hereof, taken together, constitute a prospectus that meets the requirements of
Section 10(a) of the Securities Act.
</DIV>
<!-- link1 "PART II<BR> INFORMATION REQUIRED IN THE REGISTRATION STATEMENT" -->
<DIV align="left"><A NAME="W81507001"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II<BR>
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
</DIV>

<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference." -->
<DIV align="left"><A NAME="W81507002"></A></DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed by the Company with the SEC are incorporated herein by reference
and made a part hereof:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Annual Report on Form 10-K for the year ended December&nbsp;31, 2009, filed
with the SEC on March&nbsp;8, 2010;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Quarterly Report on Form 10-Q for the quarterly periods ended March&nbsp;31,
2010, June&nbsp;30, 2010 and September&nbsp;30, 2010, filed with the SEC on May&nbsp;7, 2010, August&nbsp;6,
2010 and November&nbsp;8, 2010, respectively;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Current Reports on Form 8-K filed with the SEC on January&nbsp;5, 2010, March
1, 2010, March&nbsp;19, 2010, May&nbsp;19, 2010, May&nbsp;21, 2010, May&nbsp;27, 2010, June&nbsp;7, 2010, July&nbsp;6,
2010, November&nbsp;1, 2010 (with respect to Item&nbsp;1.01 only), November&nbsp;8, 2010, November&nbsp;15,
2010, January&nbsp;11, 2011, January&nbsp;14, 2011, January&nbsp;19, 2011 and January&nbsp;28, 2011; and</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Company&#146;s common shares set forth under the caption &#147;Description
of Capital Shares&#148; in the Registration Statement on Form S-3 (File No.&nbsp;333-153090) filed
under the Securities Act on August&nbsp;19, 2008.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed with the SEC by the Company pursuant to Sections&nbsp;13(a),
13(c), 14 and 15(d) of the Exchange Act (excluding any information that is deemed to have been
&#147;furnished&#148; and not &#147;filed&#148; with the SEC, including any Item&nbsp;2.02 or Item&nbsp;7.01 current reports on
Form 8-K), after the date of this Registration Statement and prior to the filing of a
post-effective amendment that indicates that all securities offered have been sold or that
deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference
into this Registration Statement and to be a part hereof from the date of filing
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">of such documents. Any statement contained in a document incorporated by reference herein
shall be deemed to be modified or superseded for purposes of this Registration Statement to the
extent that a statement contained herein or in any other subsequently filed document that is
incorporated by reference herein modifies or supersedes such earlier statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded, to constitute a
part of this Registration Statement.
</DIV>


<!-- link2 "Item&nbsp;4. Description of Securities." -->

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>
<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel." -->

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>
<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Maryland REIT Law permits a Maryland real estate investment trust to include in its
declaration of trust a provision limiting the liability of its trustees and officers to the trust
and its shareholders for money damages except for liability resulting from (a)&nbsp;actual receipt of an
improper benefit or profit in money, property or services or (b)&nbsp;a final judgment based upon a
finding of active and deliberate dishonesty by the trustee or officer that was material to the
cause of action adjudicated. Our declaration of trust contains a provision which limits the
liability of our trustees and officers to the maximum extent permitted by Maryland law.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our declaration of trust permits us, to the maximum extent permitted by Maryland law, to
indemnify and to pay or reimburse reasonable expenses in advance of final disposition of a
proceeding to (a)&nbsp;any present or former shareholder, employee, agent, trustee or officer or (b)&nbsp;any
individual who, while a trustee, shareholder, employee, agent, or officer and at our request,
serves or has served another real estate investment trust, corporation, partnership, joint venture,
trust, employee benefit plan or any other enterprise as a trustee, director, officer or partner of
such real estate investment trust, corporation, partnership, joint venture, trust, employee benefit
plan or other enterprise from and against any claim or liability to which such person may become
subject or which such person may incur by reason of his status as a present or former shareholder,
employee, agent, trustee or officer of our company. Our bylaws obligate us, to the maximum extent
permitted by Maryland law, to indemnify and to pay or reimburse reasonable expenses in advance of
final disposition of a proceeding to (a)&nbsp;any present or former shareholder, trustee or officer who
is made a party to the proceeding by reason of his or her service in that capacity or (b)&nbsp;any
individual who, while a trustee or officer of our company and at our request, serves or has served
another real estate investment trust, corporation, partnership, joint venture, trust, employee
benefit plan or other enterprise and who is made a party to the proceeding by reason of his or her
service in that capacity, against any claim or liability to which he or she may become subject by
reason of such status. Our declaration of trust and bylaws also permit us to indemnify and advance
expenses to any person who served a predecessor of our company in any of the capacities described
above. Maryland law requires us to indemnify a present or former trustee or officer who has been
successful, on the merits or otherwise, in the defense of any proceeding to which he or she is made
a party by reason of his or her service in that capacity, against reasonable expenses incurred in
the defense of the matter, unless limited by the charter or declaration of trust. Our declaration
of trust does not contain such a limitation.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Maryland REIT Law permits a Maryland real estate investment trust to indemnify and advance
expenses to its trustees, officers, employees and agents to the same extent as permitted by the
Maryland General Corporation Law (the &#147;MGCL&#148;) for directors and officers of Maryland corporations.
The MGCL permits a corporation to indemnify its present and former directors and officers, among
others, against judgments, penalties, fines, settlements and reasonable expenses actually incurred
by them in connection with any proceeding to which they may be a party by reason of their service
in those or other capacities unless it is established that (a)&nbsp;the act or omission of the director
or officer was material to the matter giving rise to the proceeding and (i)&nbsp;was committed in bad
faith or (ii)&nbsp;was a result of active and deliberate dishonesty, (b)&nbsp;the director or officer
actually received an improper personal benefit in money, property or
</DIV>

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</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">services or (c)&nbsp;in the case of any criminal proceeding, the director or officer had reasonable
cause to believe that the act or omission was unlawful. However, a Maryland corporation may not
indemnify for an adverse judgment in a suit by or in the right of the corporation if the trustee or
officer was adjudged to be liable to the corporation or for an adverse judgment in which trustee or
officer was adjudged liable on the basis that an improper personal benefit was received.. In
accordance with the MGCL and our bylaws, our bylaws require us, as a condition to advancing
expenses, to obtain (a)&nbsp;a written affirmation by the trustee or officer of his good faith belief
that he or she has met the standard of conduct necessary for indemnification and (b)&nbsp;a written
undertaking by or on his or her behalf to repay the amount paid or reimbursed by us if it shall
ultimately be determined that the applicable standard of conduct was not met.
</DIV>

<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed." -->

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits." -->

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Hogan Lovells US LLP as to the legality of the securities being registered.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">First Potomac Realty Trust 2009 Equity Compensation Plan, as amended (incorporated by
reference from Exhibit&nbsp;A to the Company&#146;s Definitive Proxy Statement, filed on April
6, 2010).</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of KPMG LLP.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Hogan Lovells US LLP (included as Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (included on signature page).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "SIGNATURES" -->

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Bethesda, State of
Maryland, on this  9th day of February,
2011.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>First Potomac Realty Trust</B><BR>
(Registrant)<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>

<TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/&nbsp;&nbsp;Barry H. Bass</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Barry H. Bass&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Executive Vice President
and<br>Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this registration
statement has been signed below by the following persons in the capacities and on the dates
indicated. Each of the trustees of First Potomac Realty Trust whose signature appears below hereby
appoints Barry H. Bass and Joel F. Bonder, and each of them individually, as his attorney-in-fact
to sign in his name and behalf, in any and all capacities stated below, and to file with the
Securities and Exchange Commission any and all amendments, including post-effective amendments, to
this registration statement, making such changes in the registration statement as appropriate, and
generally to do all such things in their behalf in their capacities as trustees and/or officers to
enable First Potomac Realty Trust to comply with the provisions of the Securities Act of 1933, and
all requirements of the Securities and Exchange Commission.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Douglas J. Donatelli<BR>
Douglas J. Donatelli
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman of the Board and<br>
Chief Executive Officer<br>
(Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Barry H. Bass<BR>
Barry H. Bass
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Executive Vice President and<br>
Chief Financial Officer<br>
(Principal Financial Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Michael H. Comer<BR>
Michael H. Comer
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Senior Vice President and<br>
Chief Accounting Officer<br>
(Principal Accounting Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Robert H. Arnold<BR>
Robert H. Arnold
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Trustee
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Richard B. Chess<BR>
Richard B. Chess
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Trustee
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;J. Roderick Heller<BR>
J. Roderick Heller
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Trustee
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February 9, 2011</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="30%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;R. Michael McCullough<bR>
R. Michael McCullough
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Trustee
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Alan G. Merten<BR>
Alan G. Merten
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Trustee
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;9, 2011</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/&nbsp;Terry L. Stevens<BR>Terry L. Stevens
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Trustee
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">February&nbsp;9, 2011</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "EXHIBIT INDEX" -->

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="6%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>No.</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Hogan Lovells US LLP as to the legality of the securities being registered.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">First Potomac Realty Trust 2009 Equity Compensation Plan, as amended (incorporated by
reference from Exhibit&nbsp;A to the Company&#146;s Definitive Proxy Statement, filed on April
6, 2010).</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of KPMG LLP.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Hogan Lovells US LLP (included as Exhibit&nbsp;5.1).</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (included on signature page).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



</BODY>
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{"company-data": {"conformed-name": "FIRST POTOMAC REALTY TRUST", "cik": "0001254595", "assigned-sic": "6798", "irs-number": "371470730", "state-of-incorporation": "MD", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-172141", "film-number": "11588222"}, "business-address": {"street1": "7600 WISCONSIN AVENUE", "street2": "11TH FLOOR", "city": "BETHESDA", "state": "MD", "zip": "20814", "phone": "3019869200"}, "mail-address": {"street1": "7600 WISCONSIN AVENUE", "street2": "11TH FLOOR", "city": "BETHESDA", "state": "MD", "zip": "20814"}}
sv8
Registration Statement No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
First Potomac Realty Trust
(Exact name of registrant as specified in its charter)
Maryland
(State or other jurisdiction of
incorporation or organization)
37-1470730
(I.R.S. Employer Identification No.)
7600 Wisconsin Avenue, 11
th
Floor
Bethesda, Maryland 20814
(Address of principal executive offices including zip code)
First Potomac Realty Trust 2009 Equity Compensation Plan
(Full title of the plan)
Joel F. Bonder
Executive Vice President and General Counsel
First Potomac Realty Trust
7600 Wisconsin Avenue, 11
th
Floor
Bethesda, Maryland 20814
(301) 986-9200
(Name and address, including zip code, and telephone number, including area code, of agent for service)
Copy to:
David P. Slotkin
Hogan Lovells US LLP
Columbia Square
555 Thirteenth Street, NW
Washington, DC 20004
(202) 637-5600
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated
filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
o
Accelerated
filer
þ
Non-accelerated filer
o
(Do not check if a smaller reporting company)
Smaller reporting company
o
CALCULATION OF REGISTRATION FEE
Proposed maximum
Proposed maximum
Title of securities
Amount to be
offering price
aggregate
Amount of
to be registered
registered
(1)
per share
(2)
offering price
(2)
registration fee
Common shares of
beneficial interest,
$0.001 par value per
share
2,250,000 shares
$15.92
$35,820,000.00
$4,158.70
(1)
Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), this registration statement shall also cover an indeterminate number of
additional common shares of beneficial interest ("common shares") that become issuable under the First Potomac Realty Trust 2009 Equity Compensation Plan (the "Plan")
by reason of any stock dividend, stock split, recapitalization, or other similar transaction effected without the receipt of consideration which results in an
increase in the number of the Registrant's outstanding common shares.
(2)
Estimated solely for the purpose of computing the registration fee. In accordance with Rules 457(c) and 457(h) under the Securities Act, the maximum offering price
per share and maximum aggregate offering price shown are based upon the average of the high and low sales prices reported for the Registrant's common shares on the
New York Stock Exchange on February 7, 2011, which was $15.92 per share.
EXPLANATORY NOTE
First Potomac Realty Trust (the "Company") is hereby registering 2,250,000 additional common
shares, par value $0.001, for issuance under the Company's 2009 Equity Compensation Plan, as
amended (the "2009 Equity Plan"). The prior registration statement on Form S-8 (Registration No.
333-161403, referred to as the "Prior 2009 Equity Plan Registration Statement"), as filed with the
U.S. Securities and Exchange Commission (the "SEC") on August 17, 2009, is currently effective and,
as permitted by General Instruction E to Form S-8, the contents of the Prior 2009 Equity Plan
Registration Statement are incorporated herein by reference, except to the extent supplemented,
amended or superseded by the information set forth herein.
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
The document(s) containing the information specified in this Part I will be sent or given to
participants under the First Potomac Realty Trust 2009 Equity Compensation Plan as specified by
Rule 428(b)(1) under the Securities Act. In accordance with the instructions to Part I of Form S-8,
such documents will not be filed with the SEC either as part of this Registration Statement or as
prospectuses or prospectus supplements pursuant to Rule 424 promulgated under the Securities Act.
These documents and the documents incorporated by reference in this Registration Statement pursuant
to Item 3 of Part II hereof, taken together, constitute a prospectus that meets the requirements of
Section 10(a) of the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The following documents filed by the Company with the SEC are incorporated herein by reference
and made a part hereof:
•
The Company's Annual Report on Form 10-K for the year ended December 31, 2009, filed
with the SEC on March 8, 2010;
•
The Company's Quarterly Report on Form 10-Q for the quarterly periods ended March 31,
2010, June 30, 2010 and September 30, 2010, filed with the SEC on May 7, 2010, August 6,
2010 and November 8, 2010, respectively;
•
The Company's Current Reports on Form 8-K filed with the SEC on January 5, 2010, March
1, 2010, March 19, 2010, May 19, 2010, May 21, 2010, May 27, 2010, June 7, 2010, July 6,
2010, November 1, 2010 (with respect to Item 1.01 only), November 8, 2010, November 15,
2010, January 11, 2011, January 14, 2011, January 19, 2011 and January 28, 2011; and
•
The description of the Company's common shares set forth under the caption "Description
of Capital Shares" in the Registration Statement on Form S-3 (File No. 333-153090) filed
under the Securities Act on August 19, 2008.
All documents subsequently filed with the SEC by the Company pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Exchange Act (excluding any information that is deemed to have been
"furnished" and not "filed" with the SEC, including any Item 2.02 or Item 7.01 current reports on
Form 8-K), after the date of this Registration Statement and prior to the filing of a
post-effective amendment that indicates that all securities offered have been sold or that
deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference
into this Registration Statement and to be a part hereof from the date of filing
of such documents. Any statement contained in a document incorporated by reference herein
shall be deemed to be modified or superseded for purposes of this Registration Statement to the
extent that a statement contained herein or in any other subsequently filed document that is
incorporated by reference herein modifies or supersedes such earlier statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded, to constitute a
part of this Registration Statement.
Item 4. Description of Securities.
Not Applicable.
Item 5. Interests of Named Experts and Counsel.
Not Applicable.
Item 6. Indemnification of Directors and Officers
The Maryland REIT Law permits a Maryland real estate investment trust to include in its
declaration of trust a provision limiting the liability of its trustees and officers to the trust
and its shareholders for money damages except for liability resulting from (a) actual receipt of an
improper benefit or profit in money, property or services or (b) a final judgment based upon a
finding of active and deliberate dishonesty by the trustee or officer that was material to the
cause of action adjudicated. Our declaration of trust contains a provision which limits the
liability of our trustees and officers to the maximum extent permitted by Maryland law.
Our declaration of trust permits us, to the maximum extent permitted by Maryland law, to
indemnify and to pay or reimburse reasonable expenses in advance of final disposition of a
proceeding to (a) any present or former shareholder, employee, agent, trustee or officer or (b) any
individual who, while a trustee, shareholder, employee, agent, or officer and at our request,
serves or has served another real estate investment trust, corporation, partnership, joint venture,
trust, employee benefit plan or any other enterprise as a trustee, director, officer or partner of
such real estate investment trust, corporation, partnership, joint venture, trust, employee benefit
plan or other enterprise from and against any claim or liability to which such person may become
subject or which such person may incur by reason of his status as a present or former shareholder,
employee, agent, trustee or officer of our company. Our bylaws obligate us, to the maximum extent
permitted by Maryland law, to indemnify and to pay or reimburse reasonable expenses in advance of
final disposition of a proceeding to (a) any present or former shareholder, trustee or officer who
is made a party to the proceeding by reason of his or her service in that capacity or (b) any
individual who, while a trustee or officer of our company and at our request, serves or has served
another real estate investment trust, corporation, partnership, joint venture, trust, employee
benefit plan or other enterprise and who is made a party to the proceeding by reason of his or her
service in that capacity, against any claim or liability to which he or she may become subject by
reason of such status. Our declaration of trust and bylaws also permit us to indemnify and advance
expenses to any person who served a predecessor of our company in any of the capacities described
above. Maryland law requires us to indemnify a present or former trustee or officer who has been
successful, on the merits or otherwise, in the defense of any proceeding to which he or she is made
a party by reason of his or her service in that capacity, against reasonable expenses incurred in
the defense of the matter, unless limited by the charter or declaration of trust. Our declaration
of trust does not contain such a limitation.
The Maryland REIT Law permits a Maryland real estate investment trust to indemnify and advance
expenses to its trustees, officers, employees and agents to the same extent as permitted by the
Maryland General Corporation Law (the "MGCL") for directors and officers of Maryland corporations.
The MGCL permits a corporation to indemnify its present and former directors and officers, among
others, against judgments, penalties, fines, settlements and reasonable expenses actually incurred
by them in connection with any proceeding to which they may be a party by reason of their service
in those or other capacities unless it is established that (a) the act or omission of the director
or officer was material to the matter giving rise to the proceeding and (i) was committed in bad
faith or (ii) was a result of active and deliberate dishonesty, (b) the director or officer
actually received an improper personal benefit in money, property or
services or (c) in the case of any criminal proceeding, the director or officer had reasonable
cause to believe that the act or omission was unlawful. However, a Maryland corporation may not
indemnify for an adverse judgment in a suit by or in the right of the corporation if the trustee or
officer was adjudged to be liable to the corporation or for an adverse judgment in which trustee or
officer was adjudged liable on the basis that an improper personal benefit was received.. In
accordance with the MGCL and our bylaws, our bylaws require us, as a condition to advancing
expenses, to obtain (a) a written affirmation by the trustee or officer of his good faith belief
that he or she has met the standard of conduct necessary for indemnification and (b) a written
undertaking by or on his or her behalf to repay the amount paid or reimbursed by us if it shall
ultimately be determined that the applicable standard of conduct was not met.
Item 7. Exemption from Registration Claimed.
Not Applicable.
Item 8. Exhibits.
Exhibit
No.
Description
5.1
Opinion of Hogan Lovells US LLP as to the legality of the securities being registered.
10.1
First Potomac Realty Trust 2009 Equity Compensation Plan, as amended (incorporated by
reference from Exhibit A to the Company's Definitive Proxy Statement, filed on April
6, 2010).
23.1
Consent of KPMG LLP.
23.2
Consent of Hogan Lovells US LLP (included as Exhibit 5.1).
24.1
Power of Attorney (included on signature page).
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Bethesda, State of
Maryland, on this  9th day of February,
2011.
First Potomac Realty Trust
(Registrant)
By:
/s/  Barry H. Bass
Barry H. Bass
Executive Vice President
and
Chief Financial Officer
Pursuant to the requirements of the Securities Act of 1933, as amended, this registration
statement has been signed below by the following persons in the capacities and on the dates
indicated. Each of the trustees of First Potomac Realty Trust whose signature appears below hereby
appoints Barry H. Bass and Joel F. Bonder, and each of them individually, as his attorney-in-fact
to sign in his name and behalf, in any and all capacities stated below, and to file with the
Securities and Exchange Commission any and all amendments, including post-effective amendments, to
this registration statement, making such changes in the registration statement as appropriate, and
generally to do all such things in their behalf in their capacities as trustees and/or officers to
enable First Potomac Realty Trust to comply with the provisions of the Securities Act of 1933, and
all requirements of the Securities and Exchange Commission.
Signature
Title
Date
/s/ Douglas J. Donatelli
Douglas J. Donatelli
Chairman of the Board and
Chief Executive Officer
(Principal Executive Officer)
February 9, 2011
/s/ Barry H. Bass
Barry H. Bass
Executive Vice President and
Chief Financial Officer
(Principal Financial Officer)
February 9, 2011
/s/ Michael H. Comer
Michael H. Comer
Senior Vice President and
Chief Accounting Officer
(Principal Accounting Officer)
February 9, 2011
/s/ Robert H. Arnold
Robert H. Arnold
Trustee
February 9, 2011
/s/ Richard B. Chess
Richard B. Chess
Trustee
February 9, 2011
/s/ J. Roderick Heller
J. Roderick Heller
Trustee
February 9, 2011
Signature
Title
Date
/s/ R. Michael McCullough
R. Michael McCullough
Trustee
February 9, 2011
/s/ Alan G. Merten
Alan G. Merten
Trustee
February 9, 2011
/s/ Terry L. Stevens
Terry L. Stevens
Trustee
February 9, 2011
EXHIBIT INDEX
Exhibit
No.
Description
5.1
Opinion of Hogan Lovells US LLP as to the legality of the securities being registered.
10.1
First Potomac Realty Trust 2009 Equity Compensation Plan, as amended (incorporated by
reference from Exhibit A to the Company's Definitive Proxy Statement, filed on April
6, 2010).
23.1
Consent of KPMG LLP.
23.2
Consent of Hogan Lovells US LLP (included as Exhibit 5.1).
24.1
Power of Attorney (included on signature page).