EX-4.8




 Exhibit 4.8 
 Execution Copy 
 FIRST POTOMAC REALTY
INVESTMENT LIMITED PARTNERSHIP 
 SECOND AMENDMENT

 Dated as of April 15, 2011 
 to 
 NOTE PURCHASE AGREEMENT

 Dated as of June 22, 2006 
 Re: $37,500,000 6.41% SENIOR NOTES, SERIES A, DUE JUNE 15, 2013 

   $37,500,000 6.55% Senior Notes, Series B, due June 15, 2016 








 SECOND AMENDMENT TO NOTE
PURCHASE AGREEMENT 
 THIS SECOND
AMENDMENT dated as of April 15, 2011 (the or this “Second Amendment”) to the Note Purchase Agreement dated as of June 22, 2006 (as amended by the First Amendment dated as of November 5, 2010, the
“Note Purchase Agreement”) is between FIRST POTOMAC REALTY INVESTMENT LIMITED PARTNERSHIP, a Delaware limited partnership (the
“Company”) and FIRST POTOMAC REALTY TRUST, a Maryland real estate investment trust (the “Trust”, the Trust and the Company being herein sometimes
collectively referred to as the “Obligors”), and each of the institutions which is a signatory to this Second Amendment (collectively, the “Noteholders”). 

R E C I T A L S:

 A. The Obligors and each of the purchasers signatory to the Note Purchase Agreement have heretofore
entered into the Note Purchase Agreement. The Company has heretofore issued the $37,500,000 6.41% Senior Notes, Series A, due June 15, 2013 and the $37,500,000 6.55% Senior Notes, Series B, due June 15, 2016 (collectively, the
“Notes”) pursuant to the Note Purchase Agreement. 
 B. Concurrently with the execution of the
Note Purchase Agreement, certain wholly owned Subsidiaries of the Obligors entered into that certain Guaranty Agreement, dated as of June 22, 2006, for the benefit of the holders of the Notes, pursuant to which such Subsidiaries (the
“Subsidiary Guarantors”) guaranteed the Company’s obligations under the Notes and the Note Purchase Agreement (the “Subsidiary Guaranty”). 

C. The Obligors and the Noteholders who have executed this Second Amendment (such Noteholders representing at least 51%
in principal amount of the Notes currently outstanding) now desire to amend certain provisions of the Note Purchase Agreement upon a majority of the Noteholders’ acceptance in the space below and upon the satisfaction in full of each of the
following conditions set forth in Section 2.1 hereto (the “Effective Date”) in the respects, but only in the respects, hereinafter set forth. 

D. The Obligors and the Noteholders acknowledge that, in accordance with Section 17.2 of the Note Purchase
Agreement, the Obligors must provide each Noteholder with sufficient information, 45 days in advance of the date a decision is required (the “Solicitation Period”), to enable such Noteholder to make an informed and considered
decision with respect to any proposed amendment, waiver or consent in respect of any of the provisions of the Note Purchase Agreement or the Notes. 
 E. Notwithstanding the 45-day Solicitation Period required by Section 17.2 of the Note Purchase Agreement, the Obligors and the Noteholders now desire to waive the Solicitation Period. 

F. Capitalized terms used herein shall have the respective meanings ascribed thereto in the Note Purchase Agreement
unless herein defined or the context shall otherwise require. 








 G. All requirements of law have been fully complied with and all other acts
and things necessary to make this Second Amendment a valid, legal and binding instrument according to its terms for the purposes herein expressed have been done or performed. 

NOW, THEREFORE, upon the full and complete satisfaction of the conditions precedent to the
effectiveness of the Second Amendment set forth in Section 2.1 hereof, and in consideration of good and valuable consideration the receipt and sufficiency of which is hereby acknowledged, the Obligors and the Noteholders do hereby agree
as follows: 
  

	SECTION	 1. AMENDMENTS. 


 Section 1.1. Section 7.2(a) of the Note Purchase Agreement shall be amended by inserting before the “;” at the end thereof the following phrase: 

“and a list of Excluded Subsidiaries (including the income generated by, and asset values of, properties owned by
such Subsidiary and the aggregate amount and description of outstanding debt (including dates of assumption, coupon rates and maturity dates thereof) owed by such Subsidiary)” 

Section 1.2 Defined Terms. Schedule B of the Note Purchase Agreement shall be amended as follows:

 (a) The definition of “Excluded Subsidiary” shall be deleted in its entirety
and replaced with the following definition: 
 ““Excluded Subsidiary” means ACP East, LLC,
ACP East Finance, LLC, AP Indian Creek, LLC, FP 500 First Street, LLC, Indian Creek Investors, LLC and each other New Asset Subsidiary; provided, however, that if any such Excluded Subsidiary ceases to be prohibited by its organizational
documents or loan documents or other related financing documents, each as in effect on the date hereof, or in the case of a New Asset Subsidiary, on the date the relevant loan documents or other related financing documents were assumed by such New
Asset Subsidiary or such entity becomes a Subsidiary of the Company, as applicable, and without extension, replacement, modification or renewal thereof, from incurring or guaranteeing other indebtedness, then such Excluded Subsidiary shall cease to
be an Excluded Subsidiary and the Obligors shall within 30 days thereafter cause such Subsidiary to execute and deliver to each holder of Notes a Subsidiary Guaranty.” 

  
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 (b) A new definition of “New Asset
Subsidiary” shall be added to read as follows: 
 ““New Asset Subsidiary” means

 (i) (A) any Subsidiary of the Company that has acquired from a Person other than the Company or a
Subsidiary land or buildings that are encumbered by a Lien; provided that such Lien is not created in contemplation of or in connection with such acquisition; or 

(B) any entity that becomes a Subsidiary of the Company and that at the time such entity becomes a Subsidiary of the
Company owns land or buildings that are encumbered by a Lien; provided that such Lien was not created in contemplation of or in connection with such entity becoming a Subsidiary of the Company; or 

(C) any Subsidiary or Subsidiaries of the Company, or entity or entities that become(s) a Subsidiary or Subsidiaries of
the Company, that owns or together own 100% of the equity interests of a Subsidiary or entity described in clauses (A) or (B) above; and 
 (ii) such Subsidiary or entity, as the case may be, is prohibited by its organizational documents or loan documents or other related financing documents, without extension, replacement, modification or
renewal thereof, from incurring or guaranteeing Indebtedness, other than the Indebtedness secured by the Lien described in clauses (A) or (B) above.” 
  

	SECTION	 2. AGREEMENTS. 


 Section 2.1. This Second Amendment shall become effective and binding upon the Company and the holders of the Notes on the Effective Date upon the satisfaction in full of each of the following
conditions: 
  

	 	                   (a)	 Each holder of a Note shall have received this Second Amendment, duly executed by the Company and the Trust. 



(b) The holders of at least 51% in principal amount of the Notes outstanding shall have consented to this
Second Amendment as evidenced by their execution thereof. 
 (c) The representations and
warranties of the Company set forth in Section 2.2 hereof shall be true and correct as of the date of the execution and delivery of this Second Amendment. 

(d) Each holder of a Note shall have received such certificates of officers of the Company and the Trust
as it may reasonably request with respect to this Second Amendment and the transactions contemplated hereby. 
 (e) The Company shall have paid the fees and disbursements of the holders’ special counsel, Chapman and Cutler LLP, which fees and disbursements are reflected in the statement of such special counsel
delivered to the Company at the time of the execution and delivery of this Second Amendment. 

  
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 Section 2.2. The Obligors hereby jointly and severally represent
and warrant that as of the date hereof and as of the date of execution and delivery of this Second Amendment: 
 (a) This Second Amendment and the transactions contemplated hereby are within the legal powers of the Obligors, have been duly authorized by all necessary legal action on the part of the Obligors, and
this Second Amendment has been duly executed and delivered by the Obligors and constitutes a legal, valid and binding obligation of the Obligors enforceable against them in accordance with its terms. 

(b) After giving effect to this Second Amendment, no Defaults or Events of Default under the Note
Purchase Agreement shall exist and be continuing. 
 (c) The execution, delivery and performance
of this Second Amendment by the Company does not and will not result in a violation of or default under (i) the limited partnership agreement of the Company, (ii) the declaration of trust or bylaws of the Trust, (iii) any agreement to
which the Company is a party or by which it is bound or to which any of its properties is subject, (iv) any order, writ, injunction or decree binding on the Company, or (v) any statute, regulation, rule or other law applicable to the
Company, except, in the case of (iii) through (v) above, for any violations or defaults that would not reasonably be expected to result in a Material Adverse Effect. 

(d) No consent, approval or authorization of, or registration, filing or declaration with, any
governmental authority is required in connection with the execution, delivery or performance by the Obligors of this Second Amendment, except where the failure to obtain such consents, approvals or authorizations, or to make such filings or
declarations, would not reasonably be expected to result in a Material Adverse Effect. 
 (e)
Schedule A attached to this Second Amendment lists properties owned by the Company which are encumbered by mortgages, together with the related income, asset values, maturity dates of the mortgages, dates of assumption and status as an
Excluded Subsidiary, and such Schedule A is true and correct in all material respects. 

(f) After giving effect to this Second Amendment and the terms of Section 2.1, each
Subsidiary which owns an Eligible Unencumbered Property or is an obligor, borrower or guarantor of Indebtedness (other than Excluded Subsidiaries) will have delivered a Subsidiary Guaranty. 

Section 2.3. This Second Amendment shall be construed in connection with and as part of the Note Purchase
Agreement, and except as modified and expressly amended by this Second Amendment, all terms, conditions and covenants contained in the Note Purchase Agreement and the Notes are hereby ratified and shall be and remain in full force and effect.


  
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 Section 2.4. Any and all notices, requests, certificates and
other instruments executed and delivered after the execution and delivery of this Second Amendment may refer to the Note Purchase Agreement without making specific reference to this Second Amendment but nevertheless all such references shall include
this Second Amendment unless the context otherwise requires. 
 Section 2.5. The descriptive
headings of the various Sections or parts of this Second Amendment are for convenience only and shall not affect the meaning or construction of any of the provisions hereof. 

Section 2.6. This Second Amendment shall be governed by and construed in accordance with the law of the State
of New York. 
 Section 2.7. The execution hereof by the parties hereto shall constitute a contract
among the parties for the uses and purposes hereinabove set forth, and this Second Amendment may be executed in any number of counterparts, each executed counterpart constituting an original, but all together only one agreement. 

[Signature page follows] 

  
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 IN WITNESS WHEREOF, we have hereunto set our hands as of the date first set
forth above. 
  

							
		 		 	FIRST POTOMAC REALTY INVESTMENT LIMITED PARTNERSHIP
			
		 		 	 By: FIRST POTOMAC REALTY TRUST,

        Its sole general partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


  

							
		 		 	FIRST POTOMAC REALTY TRUST
				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer



  
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	  	 	 1400 CAVALIER, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 1441 CROSSWAYS BLVD., LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP AIRPARK AB, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 FP ASHBURN, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 AIRPARK PLACE, LLC

			
		 	 By:
	 	 Airpark Place Holdings LLC
 Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP AMMENDALE COMMERCE CENTER, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 AQUIA TWO, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 CROSSWAYS II LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FPR HOLDINGS LIMITED PARTNERSHIP

			
		 	 By:
	 	 FPR General Partner, LLC
 Its General Partner

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 FP CHESTERFIELD ABEF, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP CHESTERFIELD CDGH, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP DAVIS DRIVE LOT 5, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 FP PROPERTIES, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP PROPERTIES II, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP DIAMOND HILL, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 FP CAMPOSTELLA ROAD, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 GATEWAY HAMPTON ROADS, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP GATEWAY CENTER, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 FP GATEWAY 270, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 GATEWAY MANASSAS II, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP 2550 ELLSMERE AVENUE, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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	  	 	 FP GATEWAY WEST II, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 GLEN DALE BUSINESS CENTER, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer

		
	  	 	 FP GOLDENROD LANE, LLC

			
		 	 By:
	 	 First Potomac Realty Investment Limited Partnership

Its Sole Member

			
		 	 By:
	 	 First Potomac Realty Trust
 Its General Partner

			
		 	 By:
	 	/s/ Barry H. Bass
		 		 	 Name:
	 	 Barry H. Bass

		 		 	Title:	 	 Executive Vice President and
 Chief Financial Officer



(Signatures continued on next page) 

  
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		 		 	 FP GREENBRIER CIRCLE, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 GTC I SECOND LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 FP HANOVER AB, LLC

			
		 		 	 By: FPR Holdings Limited Partnership
        Its Sole Member

			
		 		 	 By: FPR General Partner, LLC
        Its General Partner

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 

  
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		 		 	 FP HANOVER C, LLC

			
		 		 	 By: FPR Holdings Limited Partnership
        Its Sole Member

			
		 		 	 By: FPR General Partner, LLC
        Its General Partner

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust

       Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 FP HANOVER D, LLC

			
		 		 	 By: FPR Holdings Limited Partnership
        Its Sole Member

			
		 		 	 By: FPR General Partner, LLC
        Its General Partner

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 HERNDON CORPORATE CENTER, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 

  
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		 		 	 INTERSTATE PLAZA HOLDING, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 INTERSTATE PLAZA OPERATING, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 LINDEN II, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 

  
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		 		 	 LUCAS WAY HAMPTON, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 NORFOLK COMMERCE PARK, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 FP PARK CENTRAL V, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 

  
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		 		 	 FP PATRICK CENTER, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 FP PINE GLEN, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 RESTON BUSINESS CAMPUS, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 

  
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		 		 	 FP RIVERS BEND, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 FP 500 & 600 HP WAY, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership
        Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer

			
		 		 	 FP 1408 STEPHANIE WAY, LLC

			
		 		 	 By: First Potomac Realty Investment Limited Partnership

       Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
        Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 

  
 20 










  

			
	 FP STERLING PARK I, LLC

		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	 Its Sole Member

		
	 By:
	 	 First Potomac Realty Trust

		 	 Its General Partner

		
	 By:
	 	 /s/ Barry H. Bass

		 	 Name: Barry H. Bass

		 	 Title: Executive Vice President and

          Chief Financial Officer

	
	 FP STERLING PARK 6, LLC

		
	 By:
	 	 First Potomac Realty Investment Limited Partnership

		 	Its Sole Member
		
	 By:
	 	 First Potomac Realty Trust

		 	 Its General Partner

		
	 By:
	 	 /s/ Barry H. Bass

		 	 Name: Barry H. Bass

		 	 Title: Executive Vice President and

		 	 Chief Financial Officer

	
	 FP STERLING PARK 7, LLC

		
	 By:
	 	 First Potomac Realty Investment Limited Partnership

		 	 Its Sole Member

		
	 By:
	 	 First Potomac Realty Trust

		 	 Its General Partner

		
	 By:
	 	 /s/ Barry H. Bass

		 	 Name: Barry H. Bass

		 	 Title: Executive Vice President and

		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 21 









  

			
	 FP STERLING PARK LAND, LLC

		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	VIRGINIA CENTER, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP WEST PARK, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 22 









  

			
	FP CRONRIDGE DRIVE, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP GIRARD BUSINESS CENTER, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP GIRARD PLACE, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 23 









  

			
	TECHCOURT, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP PARK CENTRAL I, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP TRIANGLE, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 24 









  

			
	15395 JOHN MARSHALL HIGHWAY, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	WINDSOR AT BATTLEFIELD, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP NORTHRIDGE, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 25 









  

			
	FP PARK CENTRAL II, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	4212 TECHCOURT, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP 3 FLINT HILL, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 26 









  

			
	 1211 CONNECTICUT AVENUE, LLC

		
	By:	 	First Potomac DC Holdings, LLC
		 	Its Managing Member
		
	By:	 	First Potomac Realty Trust Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP 440 1ST STREET, LLC
		
	By:	 	First Potomac DC Holdings, LLC
		 	Its Managing Member
		
	By:	 	First Potomac Realty Trust Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP ATLANTIC CORPORTATE PARK, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 27 









  

			
	FP CANDLEWOOD, LLC
		
	By:	 	First Potomac Realty Trust Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	AQUIA ONE, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	ENTERPRISE CENTER I, LLC
		
	By:	 	Enterprise Center Manager, LLC
		 	Its Managing Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 28 









  

			
	AP INDIAN CREEK. LLC
		
	By:	 	FP Indian Creek, LLC
		 	Its Sole Member
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	INDIAN CREEK INVESTORS, LLC
		
	By:	 	FP Indian Creek, LLC
		 	Its Sole Member
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer

	
	FP PROSPERITY, LLC
		
	By:	 	First Potomac Realty Investment Limited Partnership
		 	Its Sole Member
		
	By:	 	First Potomac Realty Trust
		 	Its General Partner
		
	By:	 	/s/ Barry H. Bass
		 	Name: Barry H. Bass
		 	Title: Executive Vice President and
		 	 Chief Financial Officer




  
 (Signatures
continued on next page) 
  
 29 










							
		 		 	FP 535 INDEPENDENCE PARKWAY, LLC
			
		 		 	 By: First Potomac Realty Trust Limited Partnership
         Its Sole Member

			
		 		 	 By: First Potomac Realty Trust
         Its General Partner

				
		 		 	By:	 	/s/ Barry H. Bass
		 		 		 	Name: Barry H. Bass
		 		 		 	 Title:   Executive Vice President and
             Chief Financial Officer


 (Signatures continued on next page) 
  

  
 30 










 Accepted and Agreed to: 
  

							
		 		 	BENEFICIAL LIFE INSURANCE COMPANY
				
		 		 	By :	 	 
		 		 		 	Name:
		 		 		 	Title:


  
 31 










 Accepted and Agreed to: 
  

							
		 		 	 FARM BUREAU LIFE INSURANCE COMPANY 

EQUITRUST LIFE INSURANCE COMPANY

				
		 		 	By :	 	/s/ Herman L. Riva
		 		 		 	Name: Herman L. Riva
		 		 		 	Title: Securities Vice President


  
 32 










 Accepted and Agreed to: 
  

							
		 		 	OHIO NATIONAL LIFE ASSURANCE CORPORATION
				
		 		 	By:	 	 
		 		 		 	Name:
		 		 		 	Title:

  
  

 

  
 33 










 Accepted and Agreed to: 
  

							
		 		 	 PACIFIC LIFE INSURANCE COMPANY

(NOMINEE: MAC & CO)

				
		 		 	By:	 	/s/ T. Anthony Premer
		 		 		 	Name: T. Anthony Premer
		 		 		 	Title: Vice President

  

							
		 		 	By:	 	/s/ Jennifer L. Portnoff
		 		 		 	Name: Jennifer L. Portnoff
		 		 		 	Title: Assistant Secretary


  
 34 










 Accepted and Agreed to: 
  

							
		 		 	MINNESOTA LIFE INSURANCE COMPANY
			
		 		 	By:     Advantus Capital Management, Inc.
				
		 		 	By:	 	/s/ E.A. Bergsland
		 		 		 	Name: E.A. Bergsland
		 		 		 	Title: Vice President


  
 35 










 Accepted and Agreed to: 
  

							
		 		 	MTL INSURANCE COMPANY
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ E.A. Bergsland
		 		 		 	Name: E.A. Bergsland
		 		 		 	Title: Vice President


  
 36 










 Accepted and Agreed to: 
  

							
		 		 	SECURITY NATIONAL LIFE INSURANCE COMPANY
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ E.A. Bergsland
		 		 		 	Name: E.A. Bergsland
		 		 		 	Title: Vice President


  
 37 










 Accepted and Agreed to: 
  

							
		 		 	UNITED INSURANCE COMPANY OF AMERICA
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ E.A. Bergsland
		 		 		 	Name: E.A. Bergsland
		 		 		 	Title: Vice President


  
 38 










 Accepted and Agreed to: 
  

							
		 		 	BLUE CROSS AND BLUE SHIELD OF FLORIDA,
INC.
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ Rose A. Lambros
		 		 		 	Name: Rose A. Lambros
		 		 		 	Title: Vice President


  
 39 










 Accepted and Agreed to: 
  

							
		 		 	CATHOLIC UNITED FINANCIAL (FKA: THE CATHOLIC AID
ASSOCIATION)
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ Rose A. Lambros
		 		 		 	Name: Rose A. Lambros
		 		 		 	Title: Vice President


  
 40 










 Accepted and Agreed to: 
  

							
		 		 	FARM BUREAU LIFE INSURANCE COMPANY OF MICHIGAN
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ Rose A. Lambros
		 		 		 	Name: Rose A. Lambros
		 		 		 	Title: Vice President


  
 41 










 Accepted and Agreed to: 
  

							
		 		 	FORT DEARBORN LIFE INSURANCE COMPANY
			
		 		 	 By: Advantus Capital Management, Inc.

				
		 		 	By:	 	/s/ Rose A. Lambros
		 		 		 	Name: Rose A. Lambros
		 		 		 	Title: Vice President


  
 42 










 Accepted and Agreed to: 
  

							
		 		 	UNITED LIFE INSURANCE COMPANY
				
		 		 	By:	 	/s/ Chad Gwenther
		 		 		 	Name: Chad Gwenther
		 		 		 	Title: Portfolio Manager


  
 43 










 Accepted and Agreed to: 
  

							
		 		 	THRIVENT FINANCIAL FOR LUTHERANS
				
		 		 	By:	 	/s/ Patricia Eitrheim
		 		 		 	Name: Patricia Eitrheim
		 		 		 	Title: Director


  
 44 










 Schedule A 
 PROPERTIES ENCUMBERED BY MORTGAGES, THE RELATED INCOME, ASSET VALUES, MATURITY 

DATES OF THE MORTGAGES, DATES OF ASSUMPTION 

  
 45 










 Schedule A 

 

				September 30,				September 30,				September 30,				September 30,				September 30,	
	 Encumbered Properties
	    	Related Income
(2010 NOI)	 	 	Asset Value
(2010 Book Value)	 	    	Maturity
Date	 	    	Date of
Assumption	 	    	Subsidiary
Guaranty
Status	 
	 403/405 Glenn Drive
	    	$	1,302,109	  	 	$	17,105,643	  	    	 	7/1/2011	  	    	 	10/7/2005	  	    	 	Prohibited	  
	 4612 Navistar Drive
	    	 	1,831,546	  	 	 	19,547,427	  	    	 	7/11/2011	  	    	 	12/23/2004	  	    	 	Prohibited	  
	 Campus at Metro Park
	    	 	3,017,841	  	 	 	35,569,860	  	    	 	2/11/2012	  	    	 	12/23/2004	  	    	 	Prohibited	  
	 One Fair Oaks(1)
	    	 	4,956,210	  	 	 	62,500,000	  	    	 	6/11/2012	  	    	 	4/8/2011	  	    	 	Prohibited	  
	 1434 Crossways Boulevard Building II
	    	 	1,429,028	  	 	 	13,195,257	  	    	 	8/5/2012	  	    	 	8/17/2005	  	    	 	Prohibited	  
	 Crossways Commerce Center
	    	 	4,277,505	  	 	 	29,418,277	  	    	 	10/1/2012	  	    	 	9/6/2002	  	    	 	Prohibited	  
	 Newington Business Park Center
	    	 	2,311,515	  	 	 	13,581,907	  	    	 	10/1/2012	  	    	 	9/6/2002	  	    	 	Prohibited	  
	 Prosperity Business Center
	    	 	875,204	  	 	 	9,091,859	  	    	 	1/1/2013	  	    	 	11/3/2005	  	    	 	Allowed	  
	 Cedar Hill I & III(1)
	    	 	2,008,251	  	 	 	22,800,000	  	    	 	2/11/2013	  	    	 	2/22/2011	  	    	 	Prohibited	  
	 Merrill Lynch Building(1)
	    	 	907,588	  	 	 	11,000,000	  	    	 	2/13/2013	  	    	 	2/22/2011	  	    	 	Prohibited	  
	 1434 Crossways Boulevard Building I
	    	 	1,219,667	  	 	 	10,777,817	  	    	 	3/5/2013	  	    	 	8/17/2005	  	    	 	Prohibited	  
	 Linden Business Center
	    	 	702,181	  	 	 	14,636,909	  	    	 	10/1/2013	  	    	 	10/13/2005	  	    	 	Prohibited	  
	 840 First Street, NE(1)
	    	 	7,149,242	  	 	 	90,000,000	  	    	 	10/1/2013	  	    	 	3/14/2011	  	    	 	Prohibited	  
	 Owings Mills Business Center
	    	 	761,752	  	 	 	8,618,669	  	    	 	3/1/2014	  	    	 	11/3/2005	  	    	 	Prohibited	  
	 Annapolis Commerce Park East
	    	 	1,680,506	  	 	 	17,569,706	  	    	 	6/1/2014	  	    	 	6/18/2007	  	    	 	Prohibited	  
	 Cloverleaf Center
	    	 	3,134,384	  	 	 	20,677,995	  	    	 	10/8/2014	  	    	 	10/4/2009	  	    	 	Allowed	  
	 Plaza 500
	    	 	5,550,636	  	 	 	32,088,015	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Van Buren Business Park
	    	 	1,165,921	  	 	 	9,984,184	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Rumsey Center
	    	 	1,323,689	  	 	 	11,132,963	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Snowden Center
	    	 	1,532,314	  	 	 	14,769,258	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Greenbrier Technology Center II
	    	 	616,408	  	 	 	5,164,955	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Norfolk Business Center
	    	 	703,970	  	 	 	4,471,601	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Northridge I & II
	    	 	752,327	  	 	 	8,029,682	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 15395 John Marshall Highway
	    	 	2,287,603	  	 	 	15,606,980	  	    	 	8/1/2015	  	    	 	7/18/2005	  	    	 	Prohibited	  
	 Hanover Building D
	    	 	26,432	  	 	 	3,304,229	  	    	 	8/1/2015	  	    	 	6/27/2006	  	    	 	Allowed	  
	 Hanover Building C
	    	 	244,117	  	 	 	3,865,389	  	    	 	12/1/2017	  	    	 	6/27/2006	  	    	 	Allowed	  
	 Chesterfield Buildings C, D, G and H
	    	 	489,378	  	 	 	8,813,036	  	    	 	8/1/2015	  	    	 	6/27/2006	  	    	 	Allowed	  
	 Chesterfield Buildings A, B, E and F
	    	 	461,207	  	 	 	6,535,018	  	    	 	6/1/2021	  	    	 	6/27/2006	  	    	 	Allowed	  
	 7458 Candlewood Road
	    	 	1,955,256	2) 	 	 	20,152,612	  	    	 	1/1/2016	  	    	 	12/29/2010	  	    	 	Allowed	  
	 Gateway Centre Building I
	    	 	-19,311	  	 	 	3,308,067	  	    	 	11/1/2016	  	    	 	7/20/2005	  	    	 	Prohibited	  
	 500 First Street, NW
	    	 	4,306,963	(2) 	 	 	59,161,239	  	    	 	7/1/2020	  	    	 	6/30/2010	  	    	 	Prohibited	  
	 Battlefield Corporate Center
	    	 	721,165	(2) 	 	 	7,426,054	  	    	 	11/1/2020	  	    	 	10/28/2010	  	    	 	Allowed	  
	 Airpark Business Center
	    	 	267,187	  	 	 	2,987,784	  	    	 	6/1/2021	  	    	 	6/27/2006	  	    	 	Allowed	  

  

	(1)	 2011 Acquisition: income is first full year projected NOI and Asset Value is Purchase Price 



 

	(2)	 2010 Acquisition: First full year projected NOI 



  
 46