Document:

Sixth Amendment to Second Amended and Restated Operating Agreement

 Exhibit 10.47 
 SIXTH AMENDMENT TO 
 SECOND AMENDED AND RESTATED OPERATING
AGREEMENT 
 OF 
 TPG/CALSTRS, LLC 
 THIS SIXTH AMENDMENT TO SECOND AMENDED AND RESTATED OPERATING AGREEMENT OF TPG/CALSTRS, LLC (this
“Amendment”), is entered into as of February 19, 2010, by and between CALIFORNIA STATE TEACHERS’ RETIREMENT SYSTEM, a public entity (“Investor”), and THOMAS PROPERTIES GROUP, L.P., a Maryland limited
partnership (“Operator”). 
 RECITALS 
 A. Investor and Operator, as the sole members of TPG/CalSTRS, LLC, a Delaware limited liability company (the “Company”),
entered into that certain Second Amended and Restated Operating Agreement of TPG/CalSTRS, LLC, dated as of October 13, 2004 (the “Original Agreement”), as amended by that certain First Amendment to Second Amended and Restated
Operating Agreement of TPG/CalSTRS, LLC, dated as of June 8, 2006, that certain Second Amendment to Second Amended and Restated Operating Agreement of TPG/CalSTRS, LLC, dated as of May 25, 2007, that certain Third Amendment to Second
Amended and Restated Operating Agreement of TPG/CalSTRS, LLC, dated as of February 1, 2008, that certain Fourth Amendment to Second Amended and Restated Operating Agreement dated as of November 5, 2008, and that certain Fifth Amendment to
Second Amended and Restated Operating Agreement dated as of October 30, 2009 (collectively with the Original Agreement, the “Agreement”). All capitalized terms not otherwise defined herein shall have the meanings set forth in
the Agreement. 
 B. One of the Projects owned by the Company is that certain office complex commonly known as City National
Plaza, located at 505 – 555 South Flower Street, Los Angeles, California (the “City National Plaza Project”). The current ownership structure of the City National Plaza Project is as set forth on Exhibit
“B” to the Master Agreement (defined below). 
 C. Concurrently herewith, Investor and Operator have entered into
that certain Master Agreement for Debt and Equity Restructure of City National Plaza dated as of even date herewith (the “Master Agreement”) with respect to the City National Plaza Project. As described in the Master Agreement, CNP
Investor, LLC, a limited liability company (“CNP Investor”) that is a wholly owned subsidiary of Investor, has agreed to purchase various mezzanine loans made to Title Holding Subsidiaries of the Company to finance the City National
Plaza Project (the “Mezzanine Loans”). Pursuant to the Master Agreement, CNP Investor, Investor, Operator, the Company, and various other parties, including, without limitation, TPG Plaza Investments, LLC, a Delaware limited
liability company (“TPG Plaza Investments”), and TPGA, a Delaware limited liability company (“TPGA”), agreed that CNP Investor would convert its interest in the Mezzanine Loans into an equity interest in TPG Plaza
Investments upon the satisfaction of certain conditions set forth therein (the “Conversion”). TPGA is a Title Holding Subsidiary that is the sole member of TPG Plaza Investments. 
  

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 D. Upon exercise of the Conversion, the ownership structure of the City National Plaza
Project will be as shown on Exhibit “D” to the Master Agreement. At such time, Investor will own an interest in the City National Plaza Project through the Company and also through the membership interest in TPG Plaza Investments
owned by CNP Investor. Exhibit “E” to the Master Agreement sets forth the form of the Second Amended and Restated Operating Agreement of TPG Plaza Investments, LLC to be executed by TPGA and CNP Investor upon the Conversion
(“Amended TPG Plaza Investments LLC Agreement”). The Amended TPG Plaza Investments LLC Agreement governs the rights and obligations of the members and manager of TPG Plaza Investments upon the Conversion. 
 E. In connection with the transactions contemplated in the Master Agreement, Investor and Operator wish to further amend the Agreement as
set forth herein. 
 AGREEMENT 
 NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Investor
and Operator hereby agree as follows effective as of the date of the acquisition by CNP Investor of the Mezzanine Loans: 
 1. A
new Section 4.05 is hereby added to the Agreement as follows: 
 4.05 Capital Contributions for City National
Plaza 
 It is the parties’ intention to refinance the loan secured by the mortgage encumbering the City National
Plaza Project (the “Mortgage Indebtedness”) on or prior to its maturity date. Anything to the contrary in this Agreement notwithstanding, Investor shall have the right unilaterally to call for Additional Contributions to the capital
of the Company for the purpose of repaying upon maturity (whether scheduled or accelerated) the Mortgage Indebtedness. Such capital call shall not be subject to the requirements of Sections 2.02(c), 4.01 or 4.03 nor Exhibit D of this Agreement.
If Investor determines to make a capital call in accordance with this Section 4.05, it shall deliver written notice to Operator specifying the total amount of capital required and the amount representing the share of each Member. Within ten
(10) business days of receipt of the written notice from Investor of a capital call in accordance with this Section 4.05, each Member shall contribute its share of the capital requested. Once contributed, the Capital Contributions shall be
applied to repay the Mortgage Indebtedness. Any Capital Contributions funded pursuant to this Section 4.05 shall be excluded from the calculation of the maximum capital commitments set forth in Section 4.01(a) and (b) of this
Agreement and the additional contribution caps set forth in Section 4.01(c) of this Agreement. If Operator fails to fund its portion of the Additional Contribution called for in this

  

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Section 4.05, then Investor shall elect one of the following two options: (1) Investor shall receive a refund from the Company of its Additional Contribution made pursuant to this
Section, or (2) Investor shall fund the entire amount required to repay the Mortgage Indebtedness in full. If Investor elects the latter option, then Investor shall be treated as having an independent equity interest in the Project commensurate
on a dollar-for-dollar basis with the outstanding principal, interest and other payments due under the Mortgage Loan at the time of the capital call provided for herein, in a manner similar to, and on substantially the same terms as, the Conversion.

 2. The existing provisions of Section 1.04 shall be deemed Section 1.04(a) entitled “In General”,
and the following provisions shall be added as Section 1.04(b) of the Agreement: 
 (b) TPG Plaza Investments. The
foregoing or anything else to the contrary notwithstanding, TPG Plaza Investments, LLC, a Delaware limited liability company (“TPG Plaza Investments”), shall be deemed a “Title Holding Subsidiary”, whether (i) wholly
owned by the Company or another Title Holding Subsidiary, as it is presently owned, or (ii) owned by more than one member. Notwithstanding the foregoing, if CNP Investor becomes a member of TPG Plaza Investments as contemplated in the Amended
TPG Plaza Investments LLC Agreement, then certain rights, duties and obligations of the members of TPG Plaza Investments, including, without limitation, the contribution of capital and the receipt of distributions and allocations, will vary from
those set forth in this Agreement, as more particularly provided in the Amended TPG Plaza Investments LLC Agreement. Regardless, the provisions of this Agreement, including, without limitation, provisions regarding decision-making approvals, shall
govern the Company in its role as the sole member of the “Manager” of TPG Plaza Investments. 
 3. The following new
definitions are hereby added to Exhibit A to the Agreement in their appropriate alphabetical order: 
 “Amended TPG Plaza
Investments LLC Agreement” means that certain Second Amended and Restated Operating Agreement of TPG Plaza Investments, LLC by and between TPGA, LLC, a Delaware limited liability company that is a Title Holding Subsidiary
(“TPGA”), and CNP Investor, effective upon execution thereof by TPGA and CNP Investor. 
 “City National
Plaza Project” means that certain office complex commonly known as City National Plaza, located at 505 – 555 South Flower Street, Los Angeles, California. 
  

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 “CNP Investor” means CNP Investor, LLC, a Delaware limited
liability company. 
 “COD” is defined in Exhibit “C”. 
 “Mortgage Indebtedness” is defined in Section 4.05. 
 “Operator’s Deferred COD Income Amount” is defined in Exhibit “C”. 
 “Section 108(i) Election” is defined in Exhibit “C”. 
 “Sixth Amendment” is defined in Exhibit “C”. 
 “TPG Plaza Investments” is defined in Section 1.04(b). 
 4. The following new Section 2.8 is hereby added to Exhibit C to the Agreement: 
 Section 2.8 COD Income Arising from Purchase of Mezzanine Loans; Election Under Section 108(i) of the Code. The Members
recognize and agree that the purchase of the Mezzanine Loans described in Recital C of the Sixth Amendment to Second Amended and Restated Operating Agreement of TPG/CalSTRS, LLC (the “Sixth Amendment”) will result in the recognition
of cancellation of indebtedness (“COD”) income by TPG Plaza Investments and an allocation of such COD income to the Company from TPG Plaza Investments. This Agreement does not specify how such COD income is to be allocated. Instead
the Tax Matters Partner shall cause the Company’s accountants to allocate the COD income in accordance with applicable income tax laws and regulations. The Operator has requested that TPG Plaza Investments make the election described in
Section 108(i) of the Code [and Section 4.01 of Revenue Procedure 2009-37, 2009-36 I.R.B.] (the “Section 108(i) Election”) with respect to all or such portion, to be determined by Operator in its sole discretion and
communicated to TPG Plaza Investments in a timely manner, of the COD income that is ultimately to be allocated to Operator as provided in the immediately preceding sentence (the “Operator’s Deferred COD Income Amount”). The
Operator has further requested that the Company apportion the entire Operator’s Deferred COD Income Amount to the Operator as permitted in Section 4.12 of Revenue Procedure 2009-37. The Management Committee has agreed to accommodate the
Operator’s requests by (i) causing the Company, as the sole member of the manager of TPG Plaza Investments, to make the Section 108(i) Election with respect to Operator’s Deferred COD Income Amount as described above, and
(ii) causing the Company to allocate the entire Operator’s

  

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Deferred COD Income Amount as described above. The Operator understands and agrees that neither TPG Plaza Investments nor the Company will make any election under Section 108(i), or
otherwise allocate any COD income that is subject to Section 108(i), with respect to all or any portion of the COD income that is not the Operator’s Deferred COD Income Amount. By executing the Sixth Amendment the Operator further agrees
as follows: (i) that it will indemnify, defend and hold the Company, TPG Plaza Investments, CNP Investor, and Investor and Investor’s Constituents harmless from and against any and all tax, economic or other consequences resulting from the
Section 108(i) Election; (ii) that it will furnish to the Company and/or TPG Plaza Investments in a timely manner all information requested by the Company and/or TPG Plaza Investments in connection with making the Section 108(i)
Election or complying at any time with Section 108(i), Revenue Procedure 2009-37 or any other relevant Federal, state or local income tax law or procedure; (iii) that it will assist the Company and/or TPG Plaza Investments in complying
with all relevant procedures prescribed by the Internal Revenue Service or any relevant state or local income tax authority, including the election procedures and the annual information statements that are described in Sections 4 and 5,
respectively, of Revenue Procedure 2009-37; and (iv) that it will reimburse the Company and/or TPG Plaza Investments for any and all additional accounting, legal or compliance costs associated with (x) making the Section 108(i)
Election or for maintaining and keeping the records required in connection with the Section 108(i) Election so made, (y) filing any future returns, documents, elections or forms in connection with the Section 108(i) Election so made
and (z) dealing with any and all income tax authorities, audits, contests or litigation in connection with the Section 108(i) Election so made. 
 5. Except as expressly provided in this Amendment, all of the terms and provisions of the Agreement remain unmodified and in full force and effect. 
 6. Each individual executing this Amendment on behalf of an entity hereby represents and warrants to the other party or parties to this
Amendment that (a) such individual has been duly and validly authorized to execute and deliver this Amendment on behalf of such entity; and (b) this Amendment is and will be duly authorized, executed and delivered by such entity.

 7. This Amendment may be executed in any number of counterparts each of which shall be deemed an original and all of which
shall constitute one and the same agreement with the same effect as if all parties had signed the same signature page. This Amendment shall be deemed executed and delivered upon each party’s delivery of executed signature pages of this
Amendment, which signature pages may be delivered electronically or by facsimile with the same effect as delivery of the originals. 
 [signatures begin on next page] 
  

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 IN WITNESS WHEREOF, Investor and Operator have executed this Amendment as of the day and
year first above written. 
  

							
	“Investor”	  		  	 CALIFORNIA STATE TEACHERS’
 RETIREMENT SYSTEM, a public entity

				
		  		  	By:	 	  

				
		  		  		 	  

		  		  		 	(Print Name and Title)
			
	“Operator”	  		  	 THOMAS PROPERTIES GROUP, L.P., a
 Maryland limited partnership

				
		  		  	By:	 	 THOMAS PROPERTIES GROUP,
         INC., a Delaware corporation,
         General
Partner

				
		  		  	By:	 	  

				
		  		  		 	  

		  		  		 	(Print Name and Title)

 Signature Page to 
 Sixth AmendmentContribution Agreement

 Exhibit 10.48 
 CONTRIBUTION AGREEMENT 
 (THOMAS MASTER INVESTMENTS, LLC)

 THIS CONTRIBUTION AGREEMENT (Thomas Master Investments, LLC) (this “Agreement”) is made as of October 13, 2004 by and among
THOMAS DIVISION PARTNERSHIP, L.P., a California limited partnership (“Division”), THOMAS PARTNERS, INC., a California corporation (“TPI”), RICHARD I. GILCHRIST (“RIG”), HUNTINGTON/FOX INVESTMENTS, LP (fka E.D. Fox, Jr.,
Family LP), a California limited partnership (“HFI”), severally but not jointly (Division, TPI, RIG, and HFI being each a “Principal” and collectively, “Principals”), and THOMAS MASTER INVESTMENTS, LLC, a California
limited liability company (“TMI”). 
 RECITALS 
 A. TMI owns a limited partnership interest in the Thomas Properties Group, L.P., a Maryland limited partnership (the “Operating
Partnership”). In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in Commerce Square Partners-Philadelphia Plaza, L.P., a Pennsylvania limited partnership, TMI (along with
certain other affiliated entities) has entered into that certain Contribution Agreement (One Commerce Square) (“OCS Sr. Contribution Agreement”) with the Operating Partnership. Principals are members or former members of TMI. 

B. Pursuant to the OCS Sr. Contribution Agreement, TMI has agreed that in the event of (i) a default under the Loan referenced and
defined therein, and (ii) the occurrence of certain other conditions, TMI shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall Amount, as defined in the OCS Sr.
Contribution Agreement, to be used in accordance with the terms and conditions of the OCS Sr. Contribution Agreement. 
 C. In
connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in TPG-OCS Holding Company, LLC, a Delaware limited liability company, TMI (along with certain other affiliated entities) has entered
into that certain Contribution Agreement (One Commerce Square-Mezzanine Debt) (“OCS Mezz. Contribution Agreement”) with the Operating Partnership. 
 D. Pursuant to the OCS Mezz. Contribution Agreement, TMI has agreed that in the event of (i) a default under the Mezzanine Loan referenced and defined therein, and (ii) the occurrence of certain
other conditions, TMI shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall Amount, as defined in the OCS Mezz. Contribution Agreement, to be used in accordance with the
terms and conditions of the OCS Mezz. Contribution Agreement. 
 E. In connection with certain formation transactions by which
the Operating Partnership has acquired indirect interests in Philadelphia Plaza-Phase II, LP, a Pennsylvania limited partnership, TMI (along with certain other affiliated entities) has entered into that certain Contribution Agreement (Two Commerce
Square) (“TCS Contribution Agreement”) with the Operating Partnership. 
  

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 F. Pursuant to the TCS Contribution Agreement, TMI has agreed that in the event of
(i) a default under the Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, TMI shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of
the Shortfall Amount, as defined in the TCS Contribution Agreement, to be used in accordance with the terms and conditions of the TCS Contribution Agreement. 
 G. In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in 515/555 Flower Associates, LLC, a Delaware limited liability company, TMI (along
with certain other affiliated entities) has entered into that certain Contribution Agreement (City National Plaza) (“CNP Contribution Agreement”) with the Operating Partnership. 
 H. Pursuant to the CNP Contribution Agreement, TMI has agreed that in the event of (i) a default under the Loan referenced and defined
therein, and (ii) the occurrence of certain other conditions, TMI shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall Amount, as defined in the CNP Contribution
Agreement, to be used in accordance with the terms and conditions of the CNP Contribution Agreement. 
 I. The Contribution
Agreements described in each of Recitals A, C, E, and G above are collectively referred to below as, the “Contribution Agreements.” Each of the Contribution Agreements creates certain obligations by TMI with respect to certain Loans,
Lenders, Security Agreements, Loan Agreements and related loan documents, and Properties (all as defined in each of the respective Contribution Agreements), and as used herein, each such term shall have the meaning ascribed thereto in each of the
respective Contribution Agreements, as applicable. In order to induce TMI to enter into the Contributions Agreements with the OP, which the OP has required in connection with the consummation of the formation transactions by which the OP has
acquired its interest, direct and indirect, in the Properties, each Principal has agreed to enter into this Agreement. 
 J. In
connection with certain formation transactions referenced above, RIG has entered into that certain Agreement re Thomas Master Investments, LLC (“Main Agreement”), and has also executed and delivered that certain Indemnity Agreement
(Richard I. Gilchrist in favor of Thomas Master Investments, LLC) (“Indemnity Agreement”), as required by the Main Agreement; RIG’s execution and delivery of this Agreement is intended by RIG and TMI to supersede the Indemnity
Agreement, as provided in Paragraph 12 below. 
 NOW, THEREFORE, in consideration of the foregoing recitals and other good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows: 
 1.
Capital Contribution Obligation. If TMI is required to make an additional capital contribution under the terms and conditions of any of the Contribution Agreements, then the Principals, as members or former members of TMI, absolutely and
unconditionally agree (subject to the limits set forth below) to contribute to the capital of TMI cash or cash equivalents in an amount equal to such Principal’s Allocable Share (as defined below) of the amount actually contributed or to be
contributed by TMI to the Operating Partnership (“Contribution Amount”). Notwithstanding the foregoing, each Principal’s maximum aggregate liability hereunder is equal to the “Maximum Liability” listed opposite the

  

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Principal’s name on Exhibit “A” attached hereto, and under no circumstances shall a Principal be obligated to contribute an aggregate amount under this Agreement in excess
of such Principal’s Maximum Liability. Each Principal’s “Allocable Share” of the applicable Contribution Amount shall be equal to the product of (x) the total Contribution Amount, multiplied by (y) the “Shortfall
Percentage” listed opposite such Principal’s name on Exhibit “A” attached hereto. The obligations of each Principal hereunder are separate and distinct from the obligation s of any other Principal hereunder and are not
joint and several. 
 2. Use of Contributions. The funds contributed to the capital of TMI by each Principal will
be contributed by TMI to the Operating Partnership under the applicable Contribution Agreement, which in turn will contribute the same as provided in the applicable Contribution Agreement. 
 3. Personal Obligations. The obligations of the Principals under this Agreement are personal to the Principals and shall not
be affected by any transfer by them of all or any of their interest in TMI, and the Principals shall have no right to receive from TMI or the General Partners of TMI the reimbursement or return of any contributions to TMI, or other payments, made
pursuant to this Agreement. No Principal shall be liable to TMI, any Lender under any of the Loans referred to in the Contribution Agreements, or any other Person for any such loss, cost, damage, injury or expense sustained or incurred as a result
of another Principal’s failure to perform its obligations under this Agreement. 
 4. Terms of Agreement.
Subject to Paragraph 12 below, this Agreement, as well as all of the rights, duties, requirements and obligations created hereunder, shall expire and be of no further force or effect as to any one of the respective Contribution Agreements as
of the date on which such respective Contribution Agreement is terminated by its terms. 
 5. Modification of
Loans. Without in any manner limiting the generality of the foregoing, any Borrower or any Lender, or any subsequent holder of any Loan or beneficiary of any Security Instrument under any of the Loans referred to in the Contribution
Agreements, may, from time to time, without notice to or consent of the Principals, agree to any amendment, waiver, modification or alteration of the respective Loan Agreement or the Security Instrument relating to Borrower and its rights and
obligations thereunder (including, without limitation, renewal, waiver or variation of the maturity of the indebtedness pursuant to the respective Loan Agreement, increase or reduction of the rate of interest payable under the respective Loan,
release, substitution or addition or any Principal or endorser and acceptance of any security for the Loan). Any such Loan may be extended one or more times without notice to or consent from the Principals, and the Principals shall remain at all
times bound to their obligations under this Agreement, notwithstanding such extensions. 
 6. Omitted. 

 

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 7. Condition of TMI and Operating Partnership. The Principals are fully aware of the
financial condition of TMI, the Operating Partnership and the respective Properties referred to in the Contribution Agreements, and are executing and delivering this Agreement based solely upon their own independent investigation of all matters
pertinent hereto and are not relying in any manner upon any representation or statement of any Lender. Each Principal hereby represents and warrants that it is in a position to obtain, and hereby assumes full responsibility for obtaining, any
additional information concerning TMI’s, the Operating Partnership’s or any Property’s financial condition and any other matter pertinent hereto as it may desire, and it is not relying upon or expecting any Lender to furnish to it any
information now or hereafter in such Lender’s possession concerning the same or any other matter. By executing this Agreement, the Principals knowingly accept the full range of risks encompassed within a contract of this type, which risks they
acknowledge. The Principals shall have no right to require any Person to obtain or disclose any information with respect to the Obligations, the financial condition or character of TMI, the Operating Partnership, any Property, TMI’s or the
Operating Partnership’s ability to pay or perform its respective obligations under any of the Loan Documents or Contribution Agreements, the existence or non-existence of any guaranties of all or any part of such obligations, any action or
non-action on the part of any Lender, TMI, the Operating Partnership, or any other Person, or any other matter, fact or occurrence whatsoever. 
 8. Principals’ General Waivers. With respect to its obligations hereunder as they relate to each respective Contribution Agreement, each Principal waives: (a) any defense now existing or
hereafter arising based upon any legal disability or other defense of TMI, the Operating Partnership, any Borrower, Principal or any other Principal or other Person, or by reason of the cessation or limitation of the liability of any Borrower or
other Person from any cause other than full payment and performance of all obligations due under any Loan Agreement or any of the other Loan Documents; (b) any defense based upon any lack of authority of the officers, directors, partners or
agents acting or purporting to act on behalf of TMI, the Operating Partnership, any Borrower or any other Person, or any defect in the formation of TMI, any other Person; (c) the unenforceability or invalidity of any security or guarantee or
the lack of perfection or continuing perfection, or failure of priority of any security for the obligations guarantied hereunder; (d) any defense based upon any Lender’s failure to disclose to Principal any information concerning
TMI’s, the Operating Partnership’s, any Borrower’s or any other Person’s financial condition or any other circumstances bearing on TMI’s, the Operating Partnership’s, any Borrower’s or any other Person’s
ability to pay and perform all obligations due under any respective Loan Agreement or any of the other Loan Documents; (e) any failure by any Lender to give notice to TMI, the Operating Partnership, any Borrower, Principal or any other Person
of the sale or other disposition of security held for the Loan, and any defect in notice given by any Lender in connection with any such sale or disposition of security held for any Loan; (f) any failure of any Lender to comply with applicable
laws in connection with the sale or disposition of security held for the Loan, including, without limitation, any failure by any Lender to conduct a commercially reasonable sale or other disposition of such security; (g) any defense based upon
any statute or rule of law which provides that the obligation of a surety must be neither larger in amount nor in any other respects more burdensome than that of a principal, or that reduces a surety’s or Principal’s obligations in
proportion to the principal’s obligation; (h) any use of cash collateral under Section 363 of the Federal Bankruptcy Code; (i) any defense based upon any Lender’s election, in any proceeding instituted under the Federal
Bankruptcy Code, of the application of Section 1111(b)(2) of the Federal Bankruptcy Code or any successor statute; (j) any defense based upon any borrowing or any grant of a security interest under Section 364 of the Federal Bankruptcy
Code; (k) relief from any applicable valuation or appraisement laws; and (l) any defense based upon the application by any Borrower of the proceeds of any Loan for purposes other than the purposes represented by such Borrower to its Lender
or intended or understood by such Lender or Principal. Each Principal agrees that the payment and performance of all obligations due under any Loan Agreement or any of the other Loan Documents or any part thereof or other act which tolls any statute
of limitations applicable to such Loan Agreement or the other Loan Documents shall similarly operate to toll the statute of limitations applicable to such Principal’s liability hereunder. 
  

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 Without limiting the generality of the foregoing or any other provision hereof, each Principal further
waives any and all rights and defenses that such Principal may have because a Borrower’s debt is secured by real property; this means, among other things, that: if any Lender forecloses on any real property collateral pledged by any Borrower,
then (A) the amount of the debt may be reduced only by the price for which that collateral is sold at the foreclosure sale, even if the collateral is worth more than the sale price, and (B) such Principal shall have the obligation to
contribute hereunder to TMI even if Lender, by foreclosing on the real property collateral, has destroyed any subrogation right of the Operating Partnership against the Borrower or of TMI against the Operating Partnership or the General Partner of
the Operating Partnership. The foregoing sentence is an unconditional and irrevocable waiver of any rights and defenses each Principal may have because any such Borrower’s debt is secured by real property. 
 Without limiting the generality of the foregoing or any other provision hereof, each Principal expressly waives to the extent permitted by law any and all
rights and defenses, including without limitation any rights of subrogation, reimbursement, indemnification and contribution, which might otherwise be available to such Principal under California Civil Code Sections 2787 to 2855, inclusive, 2899 and
3433, and under California Code of Civil Procedure Sections 580a, 580b, 580d and 726 (or any of such sections), or any other jurisdiction to the extent the same are applicable to this Agreement or the agreements, covenants or obligations of such
Principal hereunder. 
 9. Waiver of Rights of Subrogation. This Agreement is expressly for the benefit of TMI and any
Indemnified Party (as defined below), and their respective successors and assigns (collectively, the “Beneficiaries”). The obligations of each Principal hereunder shall be in addition to and shall not limit or in any way affect the
obligations of any Principal under any existing or future contribution agreements or guaranties unless said other agreements or guaranties are expressly modified or revoked in writing. Subject to Paragraph 1 of this Agreement, the obligations
of each Principal hereunder are independent of the obligations of TMI. Each Principal expressly waives any and all rights of subrogation, reimbursement, indemnity, exoneration, contribution or any other claim which such Principal may now or
hereafter have against TMI, any Borrower, the Operating Partnership, any Intermediary Owner (as defined in the Contribution Agreements) or any other Person (other than a direct or indirect member or partner in such Principal) directly or
contingently liable for the payment or performance of any Loan Agreement or Security Instrument (including, without limitation, any property collateralizing the obligations under any Loan) referred to in the Contribution Agreements, arising from the
existence or performance of this Agreement. Each Principal further agrees that it will not enter into any agreement providing, directly or indirectly, for contribution, reimbursement or repayment by TMI, the Operating Partnership, any Intermediary
Owner, any Borrower or any other Person (other than a direct or indirect member or partner in such Principal) on account of any payment by such Principal and further agrees that any such agreement, whether existing or hereafter entered into in
violation hereof would be void. In furtherance, and not in limitation, of the preceding waiver, each Principal agrees that (i) any payment directly to any Lender by a Principal in satisfaction of its obligations pursuant to this Agreement shall
be deemed a contribution by such Principal (as applicable) to the capital of TMI, and any such payment shall not cause any Principal to be a creditor of such Borrower, any Intermediary Owner, the Operating Partnership, or TMI, and (ii) no
Principal shall be entitled to, or shall receive, the return of any such capital contribution except to the extent permitted by the organizational documents of TMI. 
  

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 10. Indemnification of Other Parties. Subject to the limitations in the Contribution
Agreements, if, for any reason, any other partner of TMI or any affiliate thereof (each, an “Indemnified Party”) is required by TMI or any other Person to make any contribution to the Operating Partnership or the Borrower with respect to
the portion of any Loan for which a contribution to TMI pursuant to this Agreement is required (collectively, an “Indemnified Party Outlay”), each Principal shall absolutely and unconditionally reimburse the Indemnified Party for the
lesser of (i) such Principal’s Allocable Share of the full amount of such Indemnified Party Outlay, or (ii) the maximum amount such Principal would have been obligated to contribute under Paragraph 1 hereof had such payment not
been made by the Indemnified Party. Each Principal shall reimburse the Indemnified Party as required by this Paragraph 10 within 60 days after receiving written notice of a Indemnified Party Outlay from the Indemnified Party. Any payments to
an Indemnified Party hereunder shall for all purposes hereunder be treated as capital contributions by each Principal to TMI in accordance with the provisions of Paragraph 1 above. 
 11. Effect of Waivers. Each Principal warrants and agrees that each of the waivers set forth in this Agreement are made with such
Principal’s full knowledge of their significance and consequences, and that under the circumstances the waivers are reasonable. If any of said waivers shall hereafter be determined by a court of competent jurisdiction to be contrary to any
applicable law or against public policy, such waivers shall be effective only to the maximum extent permitted by law. 
 12.
RIG Indemnity Agreement Superseded. Notwithstanding anything in this Agreement to the contrary, this Agreement shall supersede the Indemnity Agreement executed by RIG in favor of TMI, which shall be of no further force or effect upon the
execution and delivery of this Agreement by RIG. For purposes of Section 4.3 of the Main Agreement (and anywhere else in the Main Agreement), any and all references to the Indemnity Agreement shall refer to this Agreement. Further, this
Agreement and all obligations hereunder shall terminate and be of no further force or effect with respect to RIG, and only with respect to RIG, upon the close of the purchase of the RIG Interest (as defined in the Main Agreement) pursuant to the Put
Option or the Call Option (both as defined and provided in the Main Agreement), except for any unperformed or accrued obligations as of the date of such termination. 
 13. Rules of Construction. The word “Borrower” as used herein shall include the named Borrower and any other Person at any time assuming or otherwise becoming primarily liable for all or
any part of the obligations of the named Borrower under any of the respective Loan Agreements or any of the other Loan Documents referred to in the Contribution Agreements. The term “Person” as used herein shall include any individual,
corporation, partnership, limited liability company, trust or other legal entity of any kind whatsoever. When the context and construction so require, all words used in the singular herein shall be deemed to have been used in the plural and vice
versa. All headings appearing in this Agreement are for convenience only and shall be disregarded in construing this Agreement. 
  

 6 

 14. Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF CALIFORNIA, EXCEPT TO THE EXTENT PREEMPTED BY FEDERAL LAWS. THE PARTIES CONSENT TO THE JURISDICTION OF ANY FEDERAL OR STATE COURT WITHIN THE STATE OF CALIFORNIA AND ALSO CONSENT TO SERVICE OF PROCESS BY ANY MEANS
AUTHORIZED BY CALIFORNIA OR FEDERAL LAW. 
 15. Amendments. This Agreement shall not be modified, amended or terminated
in a manner which is materially adverse to any Principal or any Beneficiary without the written consent of such Principal or Beneficiary. 
 16. Miscellaneous. The provisions of this Agreement shall bind and benefit the heirs, executors, administrators, legal representatives, successors and assigns of each party hereto and of each of
the Beneficiaries. If any provision of this Agreement shall be determined by a court of competent jurisdiction to be invalid, illegal or unenforceable, that portion shall be deemed severed from this Agreement and the remaining parts shall remain in
full force as though the invalid, illegal or unenforceable portion had never been part of this Agreement. 
 17.
Counterparts. This Agreement may be executed in counterparts (including by facsimile) with the same effect as if all parties had signed the same document. All such counterparts shall be deemed an original, shall be construed together and
shall constitute one and the same instrument. 
 18. Release. The release of any Borrower from all or any part of the
indebtedness evidenced by any Loan for any reason (other than full payment of such indebtedness) or any other obligations under any of the Loan Documents (as defined in the respective Loan Agreement) for any reason (other than the full performance
thereof) or the release of TMI from its obligations under the Contribution Agreements, or any of them, other than as a result of full performance by TMI thereunder, shall not release any Principal from liability under this Agreement, unless each
Beneficiary consents to such a release of Principal in writing. 
 [Signature Page Follows] 
  

 7 

 IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the date first
written above. 
  

							
	“Principals”
	
	 THOMAS DIVISION PARTNERSHIP, L.P.,
 a California limited partnership

		
	By:	 	THOMAS INVESTMENT PARTNERS, LTD.,
		 	a California limited partnership
		 	Its General Partner
			
		 	By:	 	THOMAS PARTNERS, LTD.,
		 		 	a California corporation
		 		 	Its General Partner
				
		 		 	By:	 	  

		 		 		 	James A. Thomas, President

  

			
	 THOMAS PARTNERS, LTD.,
 a California corporation

		
	By:	 	  

		 	James A. Thomas, President
	
	  

	Richard I. Gilchrist
	
	 HUNTINGTON/FOX INVESTMENTS, LP.,
 (fka E. D. Fox, Jr., Family LP)
 a California limited partnership

		
	By:	 	  

		 	Edward D. Fox, Jr.
		 	Its General Partner

 [TMI Signature
on Following Page] 
  

 8 

			
	“TMI”
	
	 THOMAS MASTER INVESTMENTS, LLC,
 a California limited liability company

		
	By:	 	THOMAS PARTNERS, INC.,
		 	a California corporation
		 	Its Managing Partner

  

 9 

 Exhibit “A” 
  

							
	 Principal
	  	Maximum Liability	  	Shortfall Percentage	 
	 Thomas Division Partners, L.P.:
	  	$	14,000,000.00	  	53.85	% 
	 Thomas Partners, Inc.:
	  	$	998,000.00	  	3.84	% 
	 Richard I. Gilchrist:
	  	$	3,000,000.00	  	11.54	% 
	 Huntington/Fox Investments:
	  	$	8,000,000.00	  	30.77	% 
	 Total Contribution Amount:
	  	$	25,998,000.00	  	100	% 

  

 10 

 CONTRIBUTION AGREEMENT 
 (MTP-CSII) 
 THIS CONTRIBUTION AGREEMENT (MTP-CSII) (this
“Agreement”) is made as of October 13, 2004 by and among THOMAS DIVISION PARTNERSHIP, L.P., a California limited partnership (“Division”), THOMAS INVESTMENT PARTNERS, LTD., a California limited partnership (“TIP”),
severally but not jointly (Division and TIP being each a “Principal” and collectively, “Principals”), and MAGUIRE THOMAS PARTNERS-COMMERCE SQUARE II, LTD., a California limited partnership (“MTP-CSII”). 
 RECITALS 
 A.
MTP-CSII owns a limited partnership interest in Thomas Properties Group, L.P., a Maryland limited partnership (the “Operating Partnership”). In connection with certain formation transactions by which the Operating Partnership has acquired
indirect interests in Commerce Square Partners-Philadelphia Plaza, L.P., a Pennsylvania limited partnership, MTP-CSII (along with certain other affiliated entities) has entered into that certain Contribution Agreement (One Commerce Square)
(“OCS Sr. Contribution Agreement”) with the Operating Partnership. Principals are limited partners in MTP-CSII. 
 B.
Pursuant to the OCS Sr. Contribution Agreement, MTP-CSII has agreed that in the event of (i) a default under the Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-CSII shall make additional
capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall Amount, as defined in the OCS Sr. Contribution Agreement, to be used in accordance with the terms and conditions of the OCS Sr.
Contribution Agreement. 
 C. In connection with certain formation transactions by which the Operating Partnership has acquired
interests in TPG-OCS Holding Company, LLC, a Delaware limited liability company, MTP-CSII (along with certain other affiliated entities) has entered into that certain Contribution Agreement (One Commerce Square-Mezzanine Debt) (“OCS Mezz.
Contribution Agreement”) with the Operating Partnership. 
 D. Pursuant to the OCS Mezz. Contribution Agreement, MTP-CSII
has agreed that in the event of (i) a default under the Mezzanine Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-CSII shall make additional capital contributions to the Operating Partnership,
in an amount equal to its Allocable Share of the Shortfall Amount, as defined in the OCS Mezz. Contribution Agreement, to be used in accordance with the terms and conditions of the OCS Mezz. Contribution Agreement. 
 E. In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in Philadelphia
Plaza-Phase II, LP, a Pennsylvania limited partnership, MTP-CSII (along with certain other affiliated entities) has entered into that certain Contribution Agreement (Two Commerce Square) (“TCS Contribution Agreement”) with the Operating
Partnership. 

 F. Pursuant to the TCS Contribution Agreement, MTP-CSII has agreed that in the event of
(i) a default under the Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-CSII shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share
of the Shortfall Amount, as defined in the TCS Contribution Agreement, to be used in accordance with the terms and conditions of the TCS Contribution Agreement. 
 G. In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in 515/555 Flower Associates, LLC, a Delaware limited liability company, MTP-CSII
(along with certain other affiliated entities) has entered into that certain Contribution Agreement (City National Plaza) (“CNP Contribution Agreement”) with the Operating Partnership. 
 H. Pursuant to the CNP Contribution Agreement, MTP-CSII has agreed that in the event of (i) a default under the Loan referenced and
defined therein, and (ii) the occurrence of certain other conditions, MTP-CSII shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall Amount, as defined in the CNP
Contribution Agreement, to be used in accordance with the terms and conditions of the CNP Contribution Agreement. 
 I. The
Contribution Agreements described in each of Recitals A, C, E, and G above are collectively referred to below as the “Contribution Agreements.” Each of the Contribution Agreements creates certain obligations by MTP-CSII with respect to
certain Loans, Lenders, Security Agreements, Loan Agreements and related loan documents, and Properties (all as defined in each of the respective Contribution Agreements), and as used herein, each such term shall have the meaning ascribed thereto in
each of the respective Contribution Agreements, as applicable. In order to induce MTP-CSII to enter into the Contribution Agreements with the OP, which the OP has required in connection with the consummation of the formation transactions by which
the OP has acquired its interest, direct and indirect, in the Properties, each Principal has agreed to enter into this Agreement. 
 NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows: 
 1. Capital Contribution Obligation. If MTP-CSII is required to make an additional capital contribution under the terms and conditions
of any of the Contribution Agreements, then the Principals, as partners of MTP-CSII, absolutely and unconditionally agree (subject to the limits set forth below) to contribute to the capital of MTP-CSII cash or cash equivalents in an amount equal to
such Principal’s Allocable Share (as defined below) of the amount actually contributed or to be contributed by MTP-CSII to the Operating Partnership (“Contribution Amount”). Notwithstanding the foregoing, each Principal’s maximum
aggregate liability hereunder is equal to the “Maximum Liability” listed opposite the Principal’s name on Exhibit “A” attached hereto, and under no circumstances shall a Principal be obligated to contribute an
aggregate amount under this Agreement in excess of such Principal’s Maximum Liability. Each Principal’s “Allocable Share” of the applicable Contribution Amount shall be equal to the product of (x) the total Contribution
Amount, multiplied by (y) the “Shortfall Percentage” listed opposite such Principal’s name on Exhibit “A” attached hereto. The obligations of each Principal hereunder are separate and distinct from the
obligations of any other Principal hereunder and are not joint and several. 
  

 2 

 2. Use of Contributions. The funds contributed to the capital of MTP-CSII by each
Principal will be contributed by MTP-CSII to the Operating Partnership under the applicable Contribution Agreement, which in turn will contribute the same as provided in the applicable Contribution Agreement. 
 3. Personal Obligations. The obligations of the Principals under this Agreement are personal to the Principals and shall not be
affected by any transfer by them of all or any of their interests in MTP-CSII, and the Principals shall have no right to receive from MTP-CSII or the General Partner of MTP-CSII the reimbursement or return of any contributions to MTP-CSII, or other
payments, made pursuant to this Agreement. No Principal shall be liable to MTP-CSII, any Lender under any of the Loans referred to in the Contribution Agreements, or any other Person for any such loss, cost, damage, injury or expense sustained or
incurred as a result of another Principal’s failure to perform its obligations under this Agreement. 
 4. Term of
Agreement. This Agreement, as well as all of the rights, duties, requirements and obligations created hereunder, shall expire and be of no further force or effect as to any one of the respective Contribution Agreements as of the date on which
such respective Contribution Agreement is terminated by its terms. 
 5. Modification of Loans. Without in any manner
limiting the generality of the foregoing, any Borrower or any Lender, or any subsequent holder of any Loan or beneficiary of any Security Instrument under any of the Loans referred to in the Contribution Agreements, may, from time to time, without
notice to or consent of the Principals, agree to any amendment, waiver, modification or alteration of the respective Loan Agreement or the Security Instrument relating to Borrower and its rights and obligations thereunder (including, without
limitation, renewal, waiver or variation of the maturity of the indebtedness pursuant to the respective Loan Agreement, increase or reduction of the rate of interest payable under the respective Loan, release, substitution or addition of any
Principal or endorser and acceptance of any security for the Loan). Any such Loan may be extended one or more times without notice to or consent from the Principals, and the Principals shall remain at all times bound to their obligations under this
Agreement, notwithstanding such extensions. 
 6. Omitted. 
 7. Condition of MTP-CSII and Operating Partnership. The Principals are fully aware of the financial condition of MTP-CSII, the Operating Partnership and the respective Properties referred to in the
Contribution Agreements, and are executing and delivering this Agreement based solely upon their own independent investigation of all matters pertinent hereto and are not relying in any manner upon any representation or statement of any Lender. Each
Principal hereby represents and warrants that it is in a position to obtain, and hereby assumes full responsibility for obtaining, any additional information concerning MTP-CSII’s, the Operating Partnership’s or any Property’s
financial condition and any other matter pertinent hereto as it may desire, and it is not relying upon or expecting any Lender to furnish to it any information now or hereafter in such Lender’s possession concerning the same or any other
matter. By executing this Agreement, the Principals knowingly accept the full range of risks encompassed within a contract of this type, which risks they acknowledge. The Principals shall have no right to require any Person to obtain or disclose any
information with respect to the Obligations, the financial condition or character of MTP-CSII, the Operating Partnership, any Property, MTP-CSII’s or the Operating Partnership’s ability to pay or perform its respective obligations under
any of the Loan Documents or Contribution Agreements, the existence or non­existence of any guaranties of all or any part of such obligations, any action or non-action on the part of any Lender, MTP-CSII, the Operating Partnership, or any other
Person, or any other matter, fact or occurrence whatsoever. 
  

 3 

 8. Principals’ General Waivers. With respect to its obligations hereunder as
they relate to each respective Contribution Agreement, each Principal waives: (a) any defense now existing or hereafter arising based upon any legal disability or other defense of MTP-CSII, Operating Partnership, any Borrower, Principal or any
other Principal or other Person, or by reason of the cessation or limitation of the liability of any Borrower or other Person from any cause other than full payment and performance of all obligations due under any Loan Agreement or any of the other
Loan Documents; (b) any defense based upon any lack of authority of the officers, directors, partners or agents acting or purporting to act on behalf of MTP-CSII, the Operating Partnership, any Borrower or any other Person, or any defect in the
formation of MTP-CSII, any other Person; (c) the unenforceability or invalidity of any security or guarantee or the lack of perfection or continuing perfection, or failure of priority of any security for the obligations guarantied hereunder;
(d) any defense based upon any Lender’s failure to disclose to Principal any information concerning MTP-CSII’s, the Operating Partnership’s, any Borrower’s or any other Person’s financial condition or any other
circumstances bearing on MTP-CSII’s, the Operating Partnership’s, any Borrower’s or any other Person’s ability to pay and perform all obligations due under any respective Loan Agreement or any of the other Loan Documents; (e) any
failure by any Lender to give notice to MTP-CSII, the Operating Partnership, any Borrower, Principal or any other Person of the sale or other disposition of security held for the Loan, and any defect in notice given by any Lender in connection with
any such sale or disposition of security held for any Loan; (f) any failure of any Lender to comply with applicable laws in connection with the sale or disposition of security held for the Loan, including, without limitation, any failure by any
Lender to conduct a commercially reasonable sale or other disposition of such security; (g) any defense based upon any statute or rule of law which provides that the obligation of a surety must be neither larger in amount nor in any other
respects more burdensome than that of a principal, or that reduces a surety’s or Principal’s obligations in proportion to the principal’s obligation; (h) any use of cash collateral under Section 363 of the Federal Bankruptcy
Code; (i) any defense based upon any Lender’s election, in any proceeding instituted under the Federal Bankruptcy Code, of the application of Section 1111(b)(2) of the Federal Bankruptcy Code or any successor statute; (j) any defense based
upon any borrowing or any grant of a security interest under Section 364 of the Federal Bankruptcy Code; (k) relief from any applicable valuation or appraisement laws; and (l) any defense based upon the application by any Borrower of
the proceeds of any Loan for purposes other than the purposes represented by such Borrower to its Lender or intended or understood by such lender or Principal. Each Principal agrees that the payment and performance of all obligations due under any
Loan Agreement or any of the other Loan Documents or any part thereof or other act which tolls any statute of limitations applicable to such Loan Agreement or the other Loan Documents shall similarly operate to toll the statute of limitations
applicable to such Principal’s liability hereunder. Without limiting the generality of the foregoing or any other provision hereof, each Principal further waives any and all rights and 
  

 4 

 
defenses that such Principal may have because a Borrower’s debt is secured by real property; this means, among other things, that: if any Lender forecloses on any real property collateral
pledged by any Borrower, then (A) the amount of the debt may be reduced only by the price for which that collateral is sold at the foreclosure sale, even if the collateral is worth more than the sale price, and (B) such Principal shall
have the obligation to contribute hereunder to MTP-CSII even if Lender, by foreclosing on the real property collateral, has destroyed any subrogation right of the Operating Partnership against the Borrower or of MTP-CSII against the Operating
Partnership or the General Partner of the Operating Partnership. The foregoing sentence is an unconditional and irrevocable waiver of any rights and defenses each Principal may have because any such Borrower’s debt is secured by real property.

 Without limiting the generality of the foregoing or any other provision hereof, each Principal expressly waives to the extent permitted by
law any and all rights and defenses, including without limitation any rights of subrogation, reimbursement, indemnification and contribution, which might otherwise be available to such Principal under California Civil Code Sections 2787 to 2855,
inclusive, 2899 and 3433, and under California Code of Civil Procedure Sections 580a, 580b, 580d and 726 (or any of such sections), or any other jurisdiction to the extent the same are applicable to this Agreement or the agreements, covenants or
obligations of such Principal hereunder. 
 9. Waiver of Rights of Subrogation. This Agreement is expressly for the
benefit of MTP-CSII and any Indemnified Party (as defined below), and their respective successors and assigns (collectively, the “Beneficiaries”). The obligations of each Principal hereunder shall be in addition to and shall not limit or
in any way affect the obligations of any Principal under any existing or future contribution agreements or guaranties unless said other agreements or guaranties are expressly modified or revoked in writing. Subject to Paragraph 1 of this
Agreement, the obligations of each Principal hereunder are independent of the obligations of MTP-CSII. Each Principal expressly waives any and all rights of subrogation, reimbursement, indemnity, exoneration, contribution or any other claim which
such Principal may now or hereafter have against MTP-CSII, any Borrower, the Operating Partnership, any Intermediary Owner (as defined in the Contribution Agreements) or any other Person (other than a direct or indirect member or partner in such
Principal) directly or contingently liable for the payment or performance of any Loan Agreement or Security Instrument (including, without limitation, any property collateralizing the obligations under any Loan) referred to in the Contribution
Agreements, arising from the existence or performance of this Agreement. Each Principal further agrees that it will not enter into any agreement providing, directly or indirectly, for contribution, reimbursement or repayment by MTP-CSII, the
Operating Partnership, any Intermediary Owner, any Borrower or any other Person (other than a direct or indirect member or partner in such Principal) on account of any payment by such Principal and further agrees that any such agreement, whether
existing or hereafter entered into in violation hereof would be void. In furtherance, and not in limitation, of the preceding waiver, each Principal agrees that (i) any payment directly to any Lender by a Principal in satisfaction of its
obligations pursuant to this Agreement shall be deemed a contribution by such Principal (as applicable) to the capital of MTP-CSII, and any such payment shall not cause any Principal to be a creditor of such Borrower, any Intermediary Owner, the
Operating Partnership, or MTP-CSII, and (ii) no Principal shall be entitled to, or shall receive, the return of any such capital contribution except to the extent permitted by the organizational documents of MTP-CSII. 
  

 5 

 10. Indemnification of Other Parties. Subject to the limitations in the Contribution
Agreements, if, for any reason, any other partner of MTP-CSII or any affiliate thereof (each, an “Indemnified Party”) is required by MTP-CSII or any other Person to make any contribution to the Operating Partnership or the Borrower with
respect to the portion of any Loan for which a contribution to MTP-CSII pursuant to this Agreement is required (collectively, an “Indemnified Party Outlay”), each Principal shall absolutely and unconditionally reimburse the Indemnified
Party for the lesser of (i) such Principal’s Allocable Share of the full amount of such Indemnified Party Outlay, or (ii) the maximum amount such Principal would have been obligated to contribute under Paragraph 1 hereof had
such payment not been made by the Indemnified Party. Each Principal shall reimburse the Indemnified Party as required by this Paragraph 10 within 60 days after receiving written notice of a Indemnified Party Outlay from the Indemnified Party.
Any payments to an Indemnified Party hereunder shall for all purposes hereunder be treated as capital contributions by each Principal to MTP-CSII in accordance with the provisions of Paragraph 1 above. 
 11. Effect of Waivers. Each Principal warrants and agrees that each of the waivers set forth in this Agreement are made with such
Principal’s full knowledge of their significance and consequences, and that under the circumstances the waivers are reasonable. If any of said waivers shall hereafter be determined by a court of competent jurisdiction to be contrary to any
applicable law or against public policy, such waivers shall be effective only to the maximum extent permitted by law. 
 12.
Rules of Construction. The word “Borrower” as used herein shall include the named Borrower and any other Person at any time assuming or otherwise becoming primarily liable for all or any part of the obligations of the named Borrower
under any of the respective Loan Agreements or any of the other Loan Documents referred to in the Contribution Agreements. The term “Person” as used herein shall include any individual, corporation, partnership, limited liability company,
trust or other legal entity of any kind whatsoever. When the context and construction so require, all words used in the singular herein shall be deemed to have been used in the plural and vice versa. All headings appearing in this Agreement are for
convenience only and shall be disregarded in construing this Agreement. 
 13. Governing Law. THIS AGREEMENT SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF CALIFORNIA, EXCEPT TO THE EXTENT PREEMPTED BY FEDERAL LAWS. THE PARTIES CONSENT TO THE JURISDICTION OF ANY FEDERAL OR STATE COURT WITHIN THE STATE OF CALIFORNIA AND ALSO CONSENT
TO SERVICE OF PROCESS BY ANY MEANS AUTHORIZED BY CALIFORNIA OR FEDERAL LAW. 
 14. Amendments. This Agreement shall not
be modified, amended or terminated in a manner which is materially adverse to any Principal or any Beneficiary without the written consent of such Principal or Beneficiary. 
 15. Miscellaneous. The provisions of this Agreement shall bind and benefit the heirs, executors, administrators, legal
representatives, successors and assigns of each party hereto and of each of the Beneficiaries. If any provision of this Agreement shall be determined by a court of competent jurisdiction to be invalid, illegal or unenforceable, that portion shall be
deemed severed from this Agreement and the remaining parts shall remain in full force as though the invalid, illegal or unenforceable portion had never been part of this Agreement. 
  

 6 

 16. Counterparts. This Agreement may be executed in counterparts (including by
facsimile) with the same effect as if all parties had signed the same document. All such counterparts shall be deemed an original, shall be construed together and shall constitute one and the same instrument. 
 17. Release. The release of any Borrower from all or any part of the indebtedness evidenced by any Loan for any reason (other than
full payment of such indebtedness) or any other obligations under any of the Loan Documents (as defined in the respective Loan Agreement) for any reason (other than the full performance thereof) or the release of MTP-CSII from its obligations under
the Contribution Agreements, or any of them, other than as a result of full performance by MTP-CSII thereunder, shall not release any Principal from liability under this Agreement, unless each Beneficiary consents to such a release of Principal in
writing. 
 [Signature Page Follows] 
  

 7 

 IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the date first written above.

  

							
	“Principals”
	
	 THOMAS DIVISION PARTNERSHIP, L.P.,
 a California limited partnership

		
	By:	 	THOMAS INVESTMENT PARTNERS, LTD.,
		 	a California limited partnership
		 	Its General Partner
			
		 	By:	 	THOMAS PARTNERS, INC.,
		 		 	a California corporation
		 		 	Its General Partner
				
		 		 	By:	 	  

		 		 		 	James A. Thomas, President
	
	 THOMAS INVESTMENT PARTNERS, LTD.,
 a California limited partnership

		
	By:	 	THOMAS PARTNERS, INC.,
		 	a California corporation
		 	Its General Partner
			
		 	By:	 	  

		 		 	James A. Thomas, President
	
	“MTP-CSII”
	
	MAGUIRE THOMAS PARTNERS-
	 COMMERCE. SQUARE II, LTD.,
 a California limited partnership

		
	By:	 	THOMAS DEVELOPMENT PARTNERS-PHASE
		 	II, INC., a California corporation
		 	Its General PARTNER
			
		 	By:	 	  

		 		 	James A. Thomas, President

 Exhibit “A” 
  

							
	 Principal
	  	Maximum Liability	  	Shortfall Percentage	 
	 Thomas Division Partnership, L.P.:
	  	$	28,000,000.00	  	30.77	% 
	 Thomas Investment Partners, Ltd.:
	  	$	63,000,000.00	  	69.23	% 
	 Total Contribution Amount:
	  	$	91,000,000.00	  	100	% 

 CONTRIBUTION AGREEMENT 
 (MTP-PHILADELPHIA, LTD.) 
 THIS CONTRIBUTION AGREEMENT
(MTP-Philadelphia, Ltd.) (this “Agreement”) is made as of October 13, 2004 by and among THOMAS DIVISION PARTNERSHIP, L.P., a California limited partnership (“Division”), THOMAS INVESTMENT PARTNERS, LTD., a California limited
partnership (“TIP”), and Sherrie Ann Pastron and Suzanne Ellen Thomas, Co Trustees of the Thomas Family Trust of 1987, FBO Sherrie Ann Pastron (the “Pastron Trust”) and FBO Suzanne Ellen Thomas (the “Thomas Trust”),
severally but not jointly (Division, TIP, the Pastron Trust and the Thomas Trust being each a “Principal” and collectively, “Principals”), and MAGUIRE/THOMAS PARTNERS-PHILADELPHIA, LTD., a California limited partnership
(“MTP-Philadelphia”). 
 RECITALS 
 A. MTP-Philadelphia owns a limited partnership interest in the Thomas Properties Group, L.P., a Maryland limited partnership (the “Operating Partnership”). In connection with certain formation
transactions by which the Operating Partnership has acquired indirect interests in Commerce Square Partners-Philadelphia Plaza, L.P., a Pennsylvania limited partnership, MTP-Philadelphia (along with certain other affiliated entities) has entered
into that certain Contribution Agreement (One Commerce Square) (“OCS Sr. Contribution Agreement”) with the Operating Partnership. Principals are limited partners of MTP-Philadelphia. 
 B. Pursuant to the OCS Sr. Contribution Agreement, MTP-Philadelphia has agreed that in the event of (i) a default under the Loan
referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-Philadelphia shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall Amount,
as defined in the OCS Sr. Contribution Agreement, to be used in accordance with the terms and conditions of the OCS Sr. Contribution Agreement. 
 C. In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in TPG-OCS Holding Company, LLC, a Delaware limited liability company,
MTP-Philadelphia (along with certain other affiliated entities) has entered into that certain Contribution Agreement (One Commerce Square-Mezzanine Debt) (“OCS Mezz. Contribution Agreement”) with the Operating Partnership. 
 D. Pursuant to the OCS Mezz. Contribution Agreement, MTP-Philadelphia has agreed that in the event of (i) a default under the Mezzanine
Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-Philadelphia shall make additional capital contributions to the Operating Partnership, in an amount equal to its Allocable Share of the Shortfall
Amount, as defined in the OCS Mezz. Contribution Agreement, to be used in accordance with the terms and conditions of the OCS Mezz. Contribution Agreement. 
 E. In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in Philadelphia Plaza-Phase II, LP, a Pennsylvania limited partnership,
MTP-Philadelphia (along with certain other affiliated entities) has entered into that certain Contribution Agreement (Two Commerce Square) (“TCS Contribution Agreement”) with the Operating Partnership. 

 F. Pursuant to the TCS Contribution Agreement, MTP-Philadelphia has agreed that in the event
of (i) a default under the Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-Philadelphia shall make additional capital contributions to the Operating Partnership, in an amount equal to its
Allocable Share of the Shortfall Amount, as defined in the TCS Contribution Agreement, to be used in accordance with the terms and conditions of the TCS Contribution Agreement. 
 G. In connection with certain formation transactions by which the Operating Partnership has acquired indirect interests in 515/555 Flower
Associates, LLC, a Delaware limited liability company, MTP-Philadelphia (along with certain other affiliated entities) has entered into that certain Contribution Agreement (City National Plaza) (“CNP Contribution Agreement”) with the
Operating Partnership. 
 H. Pursuant to the CNP Contribution Agreement, MTP-Philadelphia has agreed that in the event of
(i) a default under the Loan referenced and defined therein, and (ii) the occurrence of certain other conditions, MTP-Philadelphia shall make additional capital contributions to the Operating Partnership, in an amount equal to its
Allocable Share of the Shortfall Amount, as defined in the CNP Contribution Agreement, to be used in accordance with the terms and conditions of the CNP Contribution Agreement. 
 I. The Contribution Agreements described in each of Recitals A, C, E, and G above are collectively referred to below as, the
“Contribution Agreements.” Each of the Contribution Agreements creates certain obligations by MTP-Philadelphia with respect to certain Loans, Lenders, Security Agreements, Loan Agreements and related loan documents, and Properties (all as
defined in each of the respective Contribution Agreements), and as used herein, each such term shall have the meaning ascribed thereto in each of the respective Contribution Agreements, as applicable. In order to induce MTP-Philadelphia to enter
into the Contribution Agreements with the OP, which the OP has required in connection with the consummation of the formation transactions by which the OP has acquired its interest, direct and indirect, in the Properties, each Principal has agreed to
enter into this Agreement. 
 NOW, THEREFORE, in consideration of the foregoing recitals and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows: 
 1.
Capital Contribution Obligation. If MTP-Philadelphia is required to make an additional capital contribution under the terms and conditions of any of the Contribution Agreements, then the Principals, as partners of MTP-Philadelphia, absolutely
and unconditionally agree (subject to the limits set forth below) to contribute to the capital of MTP-Philadelphia cash or cash equivalents in an amount equal to such Principal’s Allocable Share (as defined below) of the amount actually
contributed or to be contributed by MTP-Philadelphia to the Operating Partnership (“Contribution Amount”). Notwithstanding the foregoing, each Principal’s maximum aggregate liability hereunder is equal to the “Maximum
Liability” listed opposite the Principal’s name on Exhibit “A” attached hereto, and under no circumstances shall a

 
Principal be obligated to contribute an aggregate amount under this Agreement in excess of such Principal’s Maximum Liability. Each Principal’s “Allocable Share” of the
applicable Contribution Amount shall be equal to the product of (x) the total Contribution Amount, multiplied by (y) the “Shortfall Percentage” listed opposite such Principal’s name on Exhibit “A” attached
hereto. The obligations of each Principal hereunder are separate and distinct from the obligations of any other Principal hereunder and are not joint and several. 
 2. Use of Contributions. The funds contributed to the capital of MTP-Philadelphia by each Principal will be contributed by MTP-Philadelphia to the Operating Partnership under the applicable
Contribution Agreement, which in turn will contribute the same as provided in the applicable Contribution Agreement. 
 3.
Personal Obligations. The obligations of the Principals under this Agreement are personal to the Principals and shall not be affected by any transfer by them of all or any of their interests in MTP-Philadelphia, and the Principals shall have
no right to receive from MTP-Philadelphia or the General Partner of MTP-Philadelphia the reimbursement or return of any contributions to MTP-Philadelphia, or other payments, made pursuant to this Agreement. No Principal shall be liable to
MTP-Philadelphia, any Lender under any of the Loans referred to in the Contribution Agreements, or any other Person for any such loss, cost, damage, injury or expense sustained or incurred as a result of another Principal’s failure to perform
its obligations under this Agreement. 
 4. Term of Agreement. This Agreement, as well as all of the rights, duties,
requirements and obligations created hereunder, shall expire and be of no further force or effect as to any one of the respective Contribution Agreements as of the date on which such respective Contribution Agreement is terminated by its terms.

 5. Modification of Loans. Without in any manner limiting the generality of the foregoing, any Borrower or any Lender,
or any subsequent holder of any Loan or beneficiary of any Security Instrument under any of the Loans referred to in the Contribution Agreements, may, from time to time, without notice to or consent of the Principals, agree to any amendment, waiver,
modification or alteration of the respective Loan Agreement or the Security Instrument relating to Borrower and its rights and obligations thereunder (including, without limitation, renewal, waiver or variation of the maturity of the indebtedness
pursuant to the respective Loan Agreement, increase or reduction of the rate of interest payable under the respective Loan, release, substitution or addition of any Principal or endorser and acceptance of any security for the Loan). Any such Loan
may be extended one or more times without notice to or consent from the Principals, and the Principals shall remain at all times bound to their obligations under this Agreement, notwithstanding such extensions. 
 6. Omitted. 
 7. Condition of MTP-Philadelphia and Operating Partnership. The Principals are fully aware of the financial condition of MTP-Philadelphia, the Operating Partnership and the respective Properties referred to in the Contribution
Agreements, and are executing and delivering this Agreement based solely upon their own independent investigation of all matters pertinent hereto and are not relying in any manner upon any representation or

 
statement of any Lender. Each Principal hereby represents and warrants that it is in a position to obtain, and hereby assumes full responsibility for obtaining, any additional information
concerning MTP-Philadelphia’s, the Operating Partnership’s or any Property’s financial condition and any other matter pertinent hereto as it may desire, and it is not relying upon or expecting any Lender to furnish to it any
information now or hereafter in such Lender’s possession concerning the same or any other matter. By executing this Agreement, the Principals knowingly accept the full range of risks encompassed within a contract of this type, which risks they
acknowledge. The Principals shall have no right to require any Person to obtain or disclose any information with respect to the Obligations, the financial condition or character of MTP-Philadelphia, the Operating Partnership, any Property,
MTP-Philadelphia’s or the Operating Partnership’s ability to pay or perform its respective obligations under any of the Loan Documents or Contribution Agreements, the existence or non-existence of any guaranties of all or any part of such
obligations, any action or non-action on the part of any Lender, MTP-Philadelphia, the Operating Partnership, or any other Person, or any other matter, fact or occurrence whatsoever. 
 8. Principals’ General Waivers. With respect to its obligations hereunder as they relate to each respective Contribution
Agreement, each Principal waives: (a) any defense now existing or hereafter arising based upon any legal disability or other defense of MTP-Philadelphia, the Operating Partnership, any Borrower, Principal or any other Principal or other Person,
or by reason of the cessation or limitation of the liability of any Borrower or other Person from any cause other than full payment and performance of all obligations due under any Loan Agreement or any of the other Loan Documents; (b) any
defense based upon any lack of authority of the officers, directors, partners or agents acting or purporting to act on behalf of MTP-Philadelphia, the Operating Partnership, any Borrower or any other Person, or any defect in the formation of
MTP-Philadelphia, any other Person; (c) the unenforceability or invalidity of any security or guarantee or the lack of perfection or continuing perfection, or failure of priority of any security for the obligations guarantied hereunder;
(d) any defense based upon any Lender’s failure to disclose to Principal any information concerning MTP-Philadelphia’s, the Operating Partnership’s, any Borrower’s or any other Person’s financial condition or any other
circumstances bearing on MTP-Philadelphia’s, the Operating Partnership’s, any Borrower’s or any other Person’s ability to pay and perform all obligations due under any respective Loan Agreement or any of the other Loan Documents;
(e) any failure by any Lender to give notice to MTP-Philadelphia, the Operating Partnership, any Borrower, Principal or any other Person of the sale or other disposition of security held for the Loan, and any defect in notice given by any
Lender in connection with any such sale or disposition of security held for any Loan; (f) any failure of any Lender to comply with applicable laws in connection with the sale or disposition of security held for the Loan, including, without
limitation, any failure by any Lender to conduct a commercially reasonable sale or other disposition of such security; (g) any defense based upon any statute or rule of law which provides that the obligation of a surety must be neither larger
in amount nor in any other respects more burdensome than that of a principal, or that reduces a surety’s or Principal’s obligations in proportion to the principal’s obligation; (h) any use of cash collateral under
Section 363 of the Federal Bankruptcy Code; (i) any defense based upon any Lender’s election, in any proceeding instituted under the Federal Bankruptcy Code, of the application of Section 1111(b)(2) of the Federal Bankruptcy Code
or any successor statute; (j) any defense based upon any borrowing or any grant of a security interest under Section 364 of the Federal Bankruptcy Code; (k) relief from any applicable valuation or appraisement laws; and

 
(1) any defense based upon the application by any Borrower of the proceeds of any Loan for purposes other than the purposes represented by such Borrower to its Lender or intended or understood by
such Lender or Principal. Each Principal agrees that the payment and performance of all obligations due under any Loan Agreement or any of the other Loan Documents or any part thereof or other act which tolls any statute of limitations applicable to
such Loan Agreement or the other Loan Documents shall similarly operate to toll the statute of limitations applicable to such Principal’s liability hereunder. 
 Without limiting the generality of the foregoing or any other provision hereof, each Principal further waives any and all rights and defenses that such Principal may have because a Borrower’s debt is
secured by real property; this means, among other things, that: if any Lender forecloses on any real property collateral pledged by any Borrower, then (A) the amount of the debt may be reduced only by the price for which that collateral is sold
at the foreclosure sale, even if the collateral is worth more than the sale price, and (B) such Principal shall have the obligation to contribute hereunder to MTP-Philadelphia even if Lender, by foreclosing on the real property collateral, has
destroyed any subrogation right of the Operating Partnership against the Borrower or of MTP-Philadelphia against the Operating Partnership or the General Partner of the Operating Partnership. The foregoing sentence is an unconditional and
irrevocable waiver of any rights and defenses each Principal may have because any such Borrower’s debt is secured by real property. 
 Without limiting the generality of the foregoing or any other provision hereof, each Principal expressly waives to the extent permitted by law any and all rights and defenses, including without limitation any rights of subrogation,
reimbursement, indemnification and contribution, which might otherwise be available to such Principal under California Civil Code Sections 2787 to 2855, inclusive, 2899 and 3433, and under California Code of Civil Procedure Sections 580a, 580b, 580d
and 726 (or any of such sections), or any other jurisdiction to the extent the same are applicable to this Agreement or the agreements, covenants or obligations of such Principal hereunder. 
 9. Waiver of Rights of Subrogation. This Agreement is expressly for the benefit of MTP-Philadelphia and any Indemnified Party (as
defined below), and their respective successors and assigns (collectively, the “Beneficiaries”). The obligations of each Principal hereunder shall be in addition to and shall not limit or in any way affect the obligations of any Principal
under any existing or future contribution agreements or guaranties unless said other agreements or guaranties are expressly modified or revoked in writing. Subject to Paragraph 1 of this Agreement, the obligations of each Principal hereunder
are independent of the obligations of MTP-Philadelphia. Each Principal expressly waives any and all rights of subrogation, reimbursement, indemnity, exoneration, contribution or any other claim which such Principal may now or hereafter have against
MTP-Philadelphia, any Borrower, the Operating Partnership, any Intermediary Owner (as defined in the Contribution Agreements) or any other Person (other than a direct or indirect member or partner in such Principal) directly or contingently liable
for the payment or performance of any Loan Agreement or Security Instrument (including, without limitation, any property collateralizing the obligations under any Loan) referred to in the Contribution Agreements, arising from the existence or
performance of this Agreement. Each Principal further agrees that it will not enter into any agreement providing, directly or indirectly, for contribution, reimbursement or repayment by MTP-Philadelphia, the Operating Partnership,

 
any Intermediary Owner, any Borrower or any other Person (other than a direct or indirect member or partner in such Principal) on account of any payment by such Principal and further agrees that
any such agreement, whether existing or hereafter entered into in violation hereof would be void. In furtherance, and not in limitation, of the preceding waiver, each Principal agrees that (i) any payment directly to any Lender by a Principal
in satisfaction of its obligations pursuant to this Agreement shall be deemed a contribution by such Principal (as applicable) to the capital of MTP-Philadelphia, and any such payment shall not cause any Principal to be a creditor of such Borrower,
any Intermediary Owner, the Operating Partnership, or MTP-Philadelphia, and (ii) no Principal shall be entitled to, or shall receive, the return of any such capital contribution except to the extent permitted by the organizational documents of
MTP-Philadelphia. 
 10. Indemnification of Other Parties. Subject to the limitations in the Contribution Agreements, if,
for any reason, any other partner of MTP-Philadelphia or any affiliate thereof (each, an “Indemnified Party”) is required by MTP-Philadelphia or any other Person to make any contribution to the Operating Partnership or the Borrower with
respect to the portion of any Loan for which a contribution to MTP-Philadelphia pursuant to this Agreement is required (collectively, an “Indemnified Party Outlay”), each Principal shall absolutely and unconditionally reimburse the
Indemnified Party for the lesser of (i) such Principal’s Allocable Share of the full amount of such Indemnified Party Outlay, or (ii) the maximum amount such Principal would have been obligated to contribute under Paragraph 1
hereof had such payment not been made by the Indemnified Party. Each Principal shall reimburse the Indemnified Party as required by this Paragraph 10 within 60 days after receiving written notice of a Indemnified Party Outlay from the
Indemnified Party. Any payments to an Indemnified Party hereunder shall for all purposes hereunder be treated as capital contributions by each Principal to MTP-Philadelphia in accordance with the provisions of Paragraph 1 above. 

11. Effect of Waivers. Each Principal warrants and agrees that each of the waivers set forth in this Agreement are made with such
Principal’s full knowledge of their significance and consequences, and that under the circumstances the waivers are reasonable. If any of said waivers shall hereafter be determined by a court of competent jurisdiction to be contrary to any
applicable law or against public policy, such waivers shall be effective only to the maximum extent permitted by law. 
 12.
Rules of Construction. The word “Borrower” as used herein shall include the named Borrower and any other Person at any time assuming or otherwise becoming primarily liable for all or any part of the obligations of the named Borrower
under any of the respective Loan Agreements or any of the other Loan Documents referred to in the Contribution Agreements. The term “Person” as used herein shall include any individual, corporation, partnership, limited liability company,
trust or other legal entity of any kind whatsoever. When the context and construction so require, all words used in the singular herein shall be deemed to have been used in the plural and vice versa. All headings appearing in this Agreement are for
convenience only and shall be disregarded in construing this Agreement. 
 13. Governing Law. THIS AGREEMENT SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF CALIFORNIA, EXCEPT TO THE EXTENT PREEMPTED BY FEDERAL LAWS. THE PARTIES CONSENT TO THE JURISDICTION OF ANY FEDERAL OR STATE COURT WITHIN THE STATE OF CALIFORNIA AND ALSO CONSENT
TO SERVICE OF PROCESS BY ANY MEANS AUTHORIZED BY CALIFORNIA OR FEDERAL LAW. 

 14. Amendments. This Agreement shall not be modified, amended or terminated in a
manner which is materially adverse to any Principal or any Beneficiary without the written consent of such Principal or Beneficiary. 
 15. Miscellaneous. The provisions of this Agreement shall bind and benefit the heirs, executors, administrators, legal representatives, successors and assigns of each party hereto and of each of the Beneficiaries. If any provision of
this Agreement shall be determined by a court of competent jurisdiction to be invalid, illegal or unenforceable, that portion shall be deemed severed from this Agreement and the remaining parts shall remain in full force as though the invalid,
illegal or unenforceable portion had never been part of this Agreement. 
 16. Counterparts. This Agreement may be
executed in counterparts (including by facsimile) with the same effect as if all parties had signed the same document. All such counterparts shall be deemed an original, shall be construed together and shall constitute one and the same instrument.

 17. Release. The release of any Borrower from all or any part of the indebtedness evidenced by any Loan for any reason
(other than full payment of such indebtedness) or any other obligations under any of the Loan Documents (as defined in the respective Loan Agreement) for any reason (other than the full performance thereof) or the release of MTP-Philadelphia from
its obligations under the Contribution Agreements, or any of them, other than as a result of full performance by MTP-Philadelphia thereunder, shall not release any Principal from liability under this Agreement, unless each Beneficiary consents to
such a release of Principal in writing. 
 [Signature Page Follows] 

 IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the date first
written above. 
  

					
	“Principals”
	
	 THOMAS DIVISION PARTNERSHIP, L.P.,
 a California limited partnership

		
	By:	 	THOMAS INVESTMENT PARTNERS, LTD.,
		 	a California limited partnership
		 	Its General Partner
			
		 	By:	 	THOMAS PARTNERS, INC.,
		 		 	 a California corporation
 Its General Partner

			
		 	By:	 	  

		 		 	James A. Thomas, President
	
	 THOMAS INVESTMENT PARTNERS, LTD.,
 a California limited partnership

		
	By:	 	THOMAS PARTNERS, INC.,
		 	 a California corporation
 Its General Partner

			
		 	By:	 	  

		 		 	James A. Thomas, President
	
	 THE THOMAS FAMILY TRUST OF 1987,
 FBO Sherrie Ann Pastron

		
	By:	 	  

		 	Sherrie Ann Pastron, Co-Trustee
		
	By:	 	  

		 	Suzanne Ellen Thomas, Co-Trustee

 [Signatures Continued on Following Page] 

					
	 THE THOMAS FAMILY TRUST OF 1987,
 FBO Suzanne Ellen Thomas

		
	By:	 	  

		 	Sherrie Ann Pastron, Co-Trustee
		
	By:	 	  

		 	Suzanne Ellen Thomas, Co-Trustee
	
	“MTP-Philadelphia”
	
	 MAGUIRE/THOMAS PARTNERSPHILADELPHIA, LTD.,
 a California limited partnership

		
	By:	 	THOMAS PARTNERS INC.,
		 	California corporation
		 	Its General Partner
			
		 	By:	 	  

		 		 	James A. Thomas, President

 Exhibit “A” 
  

							
	 Principal
	  	Maximum Liability	  	Shortfall Percentage	 
	 Thomas Division Partners, L.P.:
	  	$	12,000,000.00	  	13.19	% 
	 Thomas Investment Partners, Ltd.:
	  	$	78,000,000.00	  	85.71	% 
	 Thomas Family Trust of 1987
 FBO Sherrie Ann Pastron:
	  	$	500,000.00	  	.55	% 
	 Thomas Family Trust of 1987
 FBO Suzanne Ellen Thomas:
	  	$	500,000.00	  	.55	% 
	 Total Contribution Amount:
	  	$	91,000,000.00	  	100	%

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