GUARANTY

THIS GUARANTY, dated as of July 20, 2012 (this “Guaranty”), executed and delivered by each of the undersigned and the other Persons from time to time party hereto pursuant to the execution and delivery of an Accession Agreement in the form of Annex I hereto (all of the undersigned, together with such other Persons each a “Guarantor” and collectively, the “Guarantors”) in favor of WELLS FARGO BANK, NATIONAL ASSOCIATION, in its capacity as Administrative Agent (the “Administrative Agent”) for the Lenders under that certain Credit Agreement dated as of July 20, 2012 (as amended, restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), by and among Healthcare Trust of America Holdings, LP, a Delaware limited partnership (the “Borrower”), the financial institutions party thereto and their assignees under Section 13.6 thereof (the “Lenders”), the Administrative Agent, and the other parties thereto, for its benefit and the benefit of the Lenders (the Administrative Agent and the Lenders, each individually a “Guarantied Party” and collectively, the “Guarantied Parties”).

WHEREAS, pursuant to the Credit Agreement, the Administrative Agent and the Lenders have agreed to make available to the Borrower certain financial accommodations on the terms and conditions set forth in the Credit Agreement;

WHEREAS, each Guarantor is owned or controlled by the Borrower, or is otherwise an Affiliate of the Borrower;

WHEREAS, the Borrower, each Guarantor and the other Subsidiaries of the Borrower, though separate legal entities, are mutually dependent on each other in the conduct of their respective businesses as an integrated operation and have determined it to be in their mutual best interests to obtain financing from the Administrative Agent and the Lenders, through their collective efforts;

WHEREAS, each Guarantor acknowledges that it will receive direct and indirect benefits from the Administrative Agent and, the Lenders making such financial accommodations available to the Borrower under the Credit Agreement and, accordingly, each Guarantor is willing to guarantee the Borrower's obligations to the Administrative Agent and the Lenders on the terms and conditions contained herein; and

WHEREAS, each Guarantor's execution and delivery of this Guaranty is a condition to the Administrative Agent and the other Guarantied Parties' making, and continuing to make, such financial accommodations to the Borrower.

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged by each Guarantor, each Guarantor agrees as follows:

Section 1. Guaranty. Each Guarantor hereby absolutely, irrevocably and unconditionally guaranties the due and punctual payment and performance when due, whether at stated maturity, by acceleration or otherwise, of all of the following (collectively referred to as the “Guarantied Obligations”): (a) all indebtedness and obligations owing by the Borrower or any other Loan Party to any Lender or the Administrative Agent under or in connection with the Credit Agreement and any other Loan Document to which the Borrower or such other Loan Party is a party, including, without limitation, the repayment of all principal of the Loans, and the payment of all interest, fees, charges, reasonable attorneys' fees and other amounts payable to any Lender or the Administrative Agent thereunder or in connection therewith; (b) any and all extensions, renewals, modifications, amendments or substitutions of the foregoing; (c) all documented out-of-pocket expenses, including, without limitation, attorneys' fees and disbursements, that are actually incurred by the Administrative Agent or any other Guarantied Party in the enforcement of any of the foregoing or any obligation of such Guarantor hereunder and (d) all other Obligations.

Section 2. Guaranty of Payment and Not of Collection. This Guaranty is a guaranty of payment, and not of collection, and a debt of each Guarantor for its own account. Accordingly, the Guarantied Parties shall not be obligated or required before enforcing this Guaranty against any Guarantor: (a) to pursue any right or remedy the Guarantied Parties may have against the Borrower, any other Loan Party or any other Person or commence any suit or other proceeding against the Borrower, any other Loan Party or any other Person in any court or other tribunal; (b) to make

any claim in a liquidation or bankruptcy of the Borrower, any other Loan Party or any other Person; or (c) to make demand of the Borrower, any other Loan Party or any other Person or to enforce or seek to enforce or realize upon any collateral security held by the Guarantied Parties which may secure any of the Guarantied Obligations.

Section 3. Guaranty Absolute. Each Guarantor guarantees that the Guarantied Obligations will be paid strictly in accordance with the terms of the documents evidencing the same, regardless of any Applicable Law now or hereafter in effect in any jurisdiction affecting any of such terms or the rights of the Guarantied Parties with respect thereto. The liability of each Guarantor under this Guaranty shall be absolute, irrevocable and unconditional in accordance with its terms and shall remain in full force and effect without regard to, and shall not be released, suspended, discharged, terminated or otherwise affected by, any circumstance or occurrence whatsoever (other than in accordance with Section 20 hereof), including, without limitation, the following (whether or not such Guarantor consents thereto or has notice thereof):

(a)    (i) any change in the amount, interest rate or due date or other term of any of the Guarantied Obligations, (ii) any change in the time, place or manner of payment of all or any portion of the Guarantied Obligations, (iii) any amendment or waiver of, or consent to the departure from or other indulgence with respect to, the Credit Agreement, any other Loan Document, any Specified Swap Contract or any other document or instrument evidencing or relating to any Guarantied Obligations, or (iv) any waiver, renewal, extension, addition, or supplement to, or deletion from, or any other action or inaction under or in respect of, the Credit Agreement, any of the other Loan Documents, or any other documents, instruments or agreements relating to the Guarantied Obligations or any other instrument or agreement referred to therein or evidencing any Guarantied Obligations or any assignment or transfer of any of the foregoing;

(b)    any lack of validity or enforceability of the Credit Agreement or any of the other Loan Documents (collectively, the “Credit Documents”) or any other document, instrument or agreement referred to therein or evidencing any Guarantied Obligations or any assignment or transfer of any of the foregoing;

(c)    any furnishing to the Guarantied Parties of any security for the Guarantied Obligations, or any sale, exchange, release or surrender of, or realization on, any collateral securing any of the Guarantied Obligations;

(d)    any settlement or compromise of any of the Guarantied Obligations, any security therefor, or any liability of any other party with respect to the Guarantied Obligations, or any subordination of the payment of the Guarantied Obligations to the payment of any other liability of the Borrower or any other Loan Party;

(e)    any bankruptcy, insolvency, reorganization, composition, adjustment, dissolution, liquidation or other like proceeding relating to such Guarantor, the Borrower, any other Loan Party or any other Person, or any action taken with respect to this Guaranty by any trustee or receiver, or by any court, in any such proceeding;

(f)    any act or failure to act by the Borrower, any other Loan Party or any other Person which may adversely affect such Guarantor's subrogation rights, if any, against the Borrower to recover payments made under this Guaranty;

(g)    any non-perfection or impairment of any security interest or other Lien on any collateral, if any, securing in any way any of the Guarantied Obligations;

(h)    any application of sums paid by the Borrower, any Guarantor or any other Person with respect to the liabilities of the Borrower to the Guarantied Parties, regardless of what liabilities of the Borrower remain unpaid;

(i)    any defect, limitation or insufficiency in the borrowing powers of the Borrower or in the exercise thereof; or

(j)    any other circumstance which might otherwise constitute a defense available to, or a discharge of, a Guarantor hereunder (other than indefeasible payment in full (other than unasserted indemnification obligations)).

Section 4. Action with Respect to Guarantied Obligations. The Guaranteed Parties may, at any time and from time to time, without the consent of, or notice to, any Guarantor, and without discharging any Guarantor from its

obligations hereunder, take any and all actions described in Section 3 and may otherwise: (a) amend, modify, alter or supplement the terms of any of the Guarantied Obligations, including, but not limited to, extending or shortening the time of payment of any of the Guarantied Obligations or changing the interest rate that may accrue on any of the Guarantied Obligations; (b) amend, modify, alter or supplement the Credit Agreement or any other Credit Document; (c) sell, exchange, release or otherwise deal with all, or any part, of any collateral securing any of the Guarantied Obligations; (d) release any Loan Party or other Person liable in any manner for the payment or collection of the Guarantied Obligations; (e) exercise, or refrain from exercising, any rights against the Borrower, any other Loan Party or any other Person; and (f) apply any sum, by whomsoever paid or however realized, to the Guarantied Obligations in such order as the Guarantied Parties shall elect.

Section 5. Representations and Warranties. Each Guarantor hereby makes to the Administrative Agent and the other Guarantied Parties all of the representations and warranties made by the Borrower with respect to or in any way relating to such Guarantor in the Credit Agreement and the other Credit Documents, as if the same were set forth herein in full.

Section 6. Covenants. Each Guarantor will comply with all covenants with which the Borrower is to cause such Guarantor to comply under the terms of the Credit Agreement or any of the other Loan Documents.

Section 7. Waiver. Each Guarantor, to the fullest extent permitted by Applicable Law, hereby waives: (a) any defense based upon any legal disability or other defense of Borrower, any other guarantor or other person, or by reason of the cessation or limitation of the liability of Borrower from any cause other than full payment of all sums payable under the Notes 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 Borrower or any principal of Borrower or any defect in the formation of Borrower or any principal of Borrower; (c) any defense based upon the application by Borrower of the proceeds of the Loan for purposes other than the purposes represented by Borrower to Lenders or intended or understood by Lenders or Guarantor; (d) any and all rights and defenses arising out of an election of remedies by Lenders, such as non-judicial foreclosure with respect to security for a guaranteed obligation, even though that election of remedies has destroyed Guarantor's rights of subrogation and reimbursement against the principal by the operation of law; (e) any defense based upon Lenders' or Administrative Agent's failure to disclose to Guarantor any information concerning Borrower's financial condition or any other circumstances bearing on Borrower's ability to pay all sums payable under the Notes or any of the other Loan Documents; (f) 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; (g) any defense based upon Lenders' 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; (h) any defense based upon any borrowing or any grant of a security interest under Section 364 of the Federal Bankruptcy Code; (i) any right of subrogation, any right to enforce any remedy which Lenders may have against Borrower and any right to participate in, or benefit from, any security for the Notes or the other Loan Documents now or hereafter held by Lenders; and (j) notice of acceptance hereof or any presentment, demand, protest, or notice of any kind (except to the extent expressly required under the Credit Agreement or the other Loan Documents, as applicable), and any other act or thing, or omission or delay to do any other act or thing, which in any manner or to any extent might vary the risk of such Guarantor or which otherwise might operate to discharge such Guarantor from its obligations hereunder.

Section 8. Inability to Accelerate Loan. If the Guarantied Parties or any of them are prevented under Applicable Law or otherwise from demanding or accelerating payment of any of the Guarantied Obligations by reason of any automatic stay or otherwise, the Administrative Agent and/or the other Guarantied Parties shall be entitled to receive from each Guarantor, upon demand therefor, the sums which otherwise would have been due had such demand or acceleration occurred.

Section 9. Reinstatement of Guarantied Obligations. If claim is ever made on the Administrative Agent or any other Guarantied Party for repayment or recovery of any amount or amounts received in payment or on account of any of the Guarantied Obligations, and the Administrative Agent or such other Guarantied Party repays all or part of said amount by reason of (a) any judgment, decree or order of any court or administrative body of competent jurisdiction, or (b) any settlement or compromise of any such claim effected by the Administrative Agent or such other

Guarantied Party with any such claimant (including the Borrower or a trustee in bankruptcy for the Borrower), then and in such event each Guarantor agrees that any such judgment, decree, order, settlement or compromise shall be binding on it, notwithstanding any revocation hereof or the cancellation of the Credit Agreement, any of the other Loan Documents, or any other instrument evidencing any liability of the Borrower, and such Guarantor shall be and remain liable to the Administrative Agent or such other Guarantied Party for the amounts so repaid or recovered to the same extent as if such amount had never originally been paid to the Administrative Agent or such other Guarantied Party; provided that the Administrative Agent or such other Guaranties Party shall consult in good faith with the Guarantors prior to entering into any settlement or compromise of any such claim with any such claimant.

Section 10. Subrogation. Upon the making by any Guarantor of any payment hereunder for the account of the Borrower, such Guarantor shall be subrogated to the rights of the payee against the Borrower; provided, however, that such Guarantor shall not enforce any right or receive any payment by way of subrogation or otherwise take any action in respect of any other claim or cause of action such Guarantor may have against the Borrower arising by reason of any payment or performance by such Guarantor pursuant to this Guaranty, unless and until all of the Guarantied Obligations have been indefeasibly paid and performed in full (other than unasserted indemnification obligations). If any amount shall be paid to such Guarantor on account of or in respect of such subrogation rights or other claims or causes of action, such Guarantor shall hold such amount in trust for the benefit of the Guarantied Parties and shall forthwith pay such amount to the Administrative Agent to be credited and applied against the Guarantied Obligations, whether matured or unmatured, in accordance with the terms of the Credit Agreement or to be held by the Administrative Agent as collateral security for any Guarantied Obligations existing. Until the Guarantied Obligations have been repaid in full, each Guarantor hereby agrees to forebear from enforcing to the fullest extent possible any and all claims such Guarantor may have against any Loan Party arising out of any payment by such Guarantor to the Administrative Agent and the Lenders of any of the obligations pursuant to this Guaranty, including, but not limited to, all such claims of such Guarantor arising out of any right of subrogation, indemnity, reimbursement, contribution, exoneration, payment or any other claim, cause of action, right or remedy against the Borrower, whether such claim arises at law, in equity, or out of any written or oral agreement between or among such Guarantor, the Borrower or otherwise. The waivers set forth above are intended by each Guarantor, the Administrative Agent and the Lenders to be for the benefit of each Loan Party, and such waivers shall be enforceable by such Loan Party, or any of their successors or assigns, as an absolute defense to any action by such Guarantor against such Loan Party or the assets of such Loan Party, which action arises out of any payment by such Guarantor to the Administrative Agent or Lenders upon any of these obligations. The waivers set forth herein may not be revoked by any Guarantor without the prior written consent of the Administrative Agent and each Loan Party.

Section 11. Payments Free and Clear. All sums payable by each Guarantor hereunder, whether of principal, interest, fees, expenses, premiums or otherwise, shall be paid in full, without set-off or counterclaim or any deduction or withholding whatsoever (including any Taxes), and if such Guarantor is required by Applicable Law or by any Governmental Authority to make any such deduction or withholding such Guarantor shall pay to the Administrative Agent and the Lenders such additional amount as will result in the receipt by the Administrative Agent and the Lenders of the full amount payable hereunder had such deduction or withholding not occurred or been required.

Section 12. Set-off. In addition to any rights now or hereafter granted under any of the other Credit Documents or Applicable Law and not by way of limitation of any such rights, each Guarantor hereby authorizes each Guarantied Party and their respective affiliates and each Participant, at any time and from time to time while an Event of Default exists, without any notice to such Guarantor or to any other Person, any such notice being hereby expressly waived, but in the case of a Lender, an affiliate of any of the foregoing, or a Participant, subject to receipt of the prior written consent of the Administrative Agent and Requisite Lenders, exercised in their sole discretion, to set-off and to appropriate and to apply any and all deposits (general or special, including, but not limited to, indebtedness evidenced by certificates of deposit, whether matured or unmatured) and any other indebtedness at any time held or owing by the Administrative Agent, such Lender, or such Participant or any affiliate of the Administrative Agent or such Lender to or for the credit or the account of the Borrower against and on account of any of the Guarantied Obligations, although such obligations shall be contingent or unmatured. Each Guarantor agrees, to the fullest extent permitted by Applicable Law, that any Participant may exercise rights of setoff or counterclaim and other rights with respect to its participation as fully as if such Participant were a direct creditor of such Guarantor in the amount of such participation.

Section 13. Subordination. Each Guarantor hereby expressly covenants and agrees for the benefit of the Guarantied Parties that all obligations and liabilities of the Borrower to such Guarantor of whatever description, including, without limitation, all intercompany receivables of such Guarantor from the Borrower (collectively, the “Junior Claims”) shall be subordinate and junior in right of payment to all Guarantied Obligations. If an Event of Default shall exist, then no Guarantor shall accept any direct or indirect payment (in cash, property or securities, by setoff or otherwise) from the Borrower on account of or in any manner in respect of any Junior Claim until all of the Guarantied Obligations have been indefeasibly paid in full (other than unasserted indemnification obligations).

Section 14. Avoidance Provisions. It is the intent of each Guarantor, the Administrative Agent and the other Guarantied Parties that in any Proceeding, such Guarantor's maximum obligation hereunder shall equal, but not exceed, the maximum amount which would not otherwise cause the obligations of such Guarantor hereunder (or any other obligations of such Guarantor to the Guarantied Parties) to be avoidable or unenforceable against such Guarantor in such Proceeding as a result of Applicable Law, including, without limitation, (a) Section 548 of the Bankruptcy Code of 1978, as amended (the “Bankruptcy Code”) and (b) any state fraudulent transfer or fraudulent conveyance act or statute applied in such Proceeding, whether by virtue of Section 544 of the Bankruptcy Code or otherwise. The Applicable Laws under which the possible avoidance or unenforceability of the obligations of such Guarantor hereunder (or any other obligations of such Guarantor to the Guarantied Parties) shall be determined in any such Proceeding are referred to as the “Avoidance Provisions”. Accordingly, to the extent that the obligations of any Guarantor hereunder would otherwise be subject to avoidance under the Avoidance Provisions, the maximum Guarantied Obligations for which such Guarantor shall be liable hereunder shall be reduced to that amount which, as of the time any of the Guarantied Obligations are deemed to have been incurred under the Avoidance Provisions, would not cause the obligations of any Guarantor hereunder (or any other obligations of such Guarantor to the Guarantied Parties), to be subject to avoidance under the Avoidance Provisions. This Section is intended solely to preserve the rights of the Administrative Agent and the other Guarantied Parties hereunder to the maximum extent that would not cause the obligations of any Guarantor hereunder to be subject to avoidance under the Avoidance Provisions, and no Guarantor or any other Person shall have any right or claim under this Section as against the Guarantied Parties that would not otherwise be available to such Person under the Avoidance Provisions.

Section 15. Information. Each Guarantor assumes all responsibility for being and keeping itself informed of the financial condition of the Borrower and the other Loan Parties, and of all other circumstances bearing upon the risk of nonpayment of any of the Guarantied Obligations and the nature, scope and extent of the risks that such Guarantor assumes and incurs hereunder, and agrees that neither of the Administrative Agent nor any other Guarantied Party shall have any duty whatsoever to advise any Guarantor of information regarding such circumstances or risks.

Section 16. Governing Law. THIS GUARANTY SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO CONTRACTS EXECUTED, AND TO BE FULLY PERFORMED, IN SUCH STATE.

SECTION 17. WAIVER OF JURY TRIAL.

(a)    EACH GUARANTOR, AND EACH OF THE Administrative Agent AND THE OTHER GUARANTIED PARTIES BY ACCEPTING THE BENEFITS HEREOF, ACKNOWLEDGES THAT ANY DISPUTE OR CONTROVERSY BETWEEN SUCH GUARANTOR, THE Administrative Agent OR ANY OF THE OTHER GUARANTIED PARTIES WOULD BE BASED ON DIFFICULT AND COMPLEX ISSUES OF LAW AND FACT AND WOULD RESULT IN DELAY AND EXPENSE TO THE PARTIES. ACCORDINGLY, TO THE EXTENT PERMITTED BY APPLICABLE LAW, EACH OF THE GUARANTORS, THE Administrative Agent AND THE OTHER GUARANTIED PARTIES HEREBY WAIVES ITS RIGHT TO A TRIAL BY JURY IN ANY ACTION OR PROCEEDING OF ANY KIND OR NATURE IN ANY COURT OR TRIBUNAL IN WHICH AN ACTION MAY BE COMMENCED BY OR AGAINST ANY PARTY HERETO ARISING OUT OF THIS GUARANTY.

(b)    EACH GUARANTOR, AND EACH OF THE Administrative Agent AND THE OTHER GUARANTIED PARTIES BY ACCEPTING THE BENEFITS HEREOF, HEREBY AGREES THAT ANY FEDERAL DISTRICT COURT LOCATED IN THE STATE OF NEW YORK OR ANY STATE COURT LOCATED IN SOUTHERN DISTRICT OF NEW YORK SHALL HAVE JURISDICTION TO HEAR AND DETERMINE ANY

CLAIMS OR DISPUTES BETWEEN OR AMONG THE GUARANTORS, THE ADMINISTRATIVE AGENT OR ANY OF THE OTHER GUARANTIED PARTIES, PERTAINING DIRECTLY OR INDIRECTLY TO THIS GUARANTY. EACH GUARANTOR AND EACH OF THE GUARANTIED PARTIES EXPRESSLY SUBMITS AND CONSENTS IN ADVANCE TO SUCH JURISDICTION IN ANY ACTION OR PROCEEDING COMMENCED IN SUCH COURTS. EACH GUARANTOR HEREBY WAIVES PERSONAL SERVICE OF THE SUMMONS AND COMPLAINT, OR OTHER PROCESS OR PAPERS ISSUED THEREIN, AND AGREES THAT SERVICE OF SUCH SUMMONS AND COMPLAINT, OR OTHER PROCESS OR PAPERS MAY BE MADE BY REGISTERED OR CERTIFIED MAIL ADDRESSED TO SUCH GUARANTOR AT ITS ADDRESS FOR NOTICES PROVIDED FOR HEREIN. SHOULD A GUARANTOR FAIL TO APPEAR OR ANSWER ANY SUMMONS, COMPLAINT, PROCESS OR PAPERS SO SERVED WITHIN THIRTY DAYS AFTER THE MAILING THEREOF, SUCH GUARANTOR SHALL BE DEEMED IN DEFAULT AND AN ORDER AND/OR JUDGMENT MAY BE ENTERED AGAINST IT AS DEMANDED OR PRAYED FOR IN SUCH SUMMONS, COMPLAINT, PROCESS OR PAPERS. EACH PARTY FURTHER WAIVES ANY OBJECTION THAT IT MAY NOW OR HEREAFTER HAVE TO THE VENUE OF ANY SUCH ACTION OR PROCEEDING IN ANY SUCH COURT OR THAT SUCH ACTION OR PROCEEDING WAS BROUGHT IN AN INCONVENIENT FORUM AND EACH AGREES NOT TO PLEAD OR CLAIM THE SAME. THE CHOICE OF FORUM SET FORTH IN THIS SECTION SHALL NOT BE DEEMED TO PRECLUDE THE BRINGING OF ANY ACTION BY THE ADMINISTRATIVE AGENT OR ANY OTHER GUARANTIED PARTY OR THE ENFORCEMENT BY THE ADMINISTRATIVE AGENT OR ANY OTHER GUARANTIED PARTY OF ANY JUDGMENT OBTAINED IN SUCH FORUM IN ANY OTHER APPROPRIATE JURISDICTION.

(c)    THE PROVISIONS OF THIS SECTION HAVE BEEN CONSIDERED BY EACH PARTY WITH THE ADVICE OF COUNSEL AND WITH A FULL UNDERSTANDING OF THE LEGAL CONSEQUENCES THEREOF, AND SHALL SURVIVE THE PAYMENT OF THE LOANS AND ALL OTHER AMOUNTS PAYABLE HEREUNDER OR UNDER THE OTHER LOAN DOCUMENTS AND THE TERMINATION OF THIS GUARANTY.

Section 18. Loan Accounts. The Administrative Agent and each Lender may maintain books and accounts setting forth the amounts of principal, interest and other sums paid and payable with respect to the Guarantied Obligations arising under or in connection with the Credit Agreement, and in the case of any dispute relating to any of the outstanding amount, payment or receipt of any of the Guarantied Obligations or otherwise, the entries in such books and accounts shall constitute prima facie evidence of the outstanding amount of such Guarantied Obligations and the amounts paid and payable with respect thereto and the other matters set forth therein absent manifest error. The failure of the Administrative Agent or any Lender to maintain such books and accounts shall not in any way relieve or discharge any Guarantor of any of its obligations hereunder.

Section 19. Waiver of Remedies. No delay or failure on the part of the Administrative Agent or any other Guarantied Party in the exercise of any right or remedy it may have against any Guarantor hereunder or otherwise shall operate as a waiver thereof, and no single or partial exercise by the Administrative Agent or any other Guarantied Party of any such right or remedy shall preclude any other or further exercise thereof or the exercise of any other such right or remedy.

Section 20. Termination. This Guaranty shall remain in full force and effect with respect to each Guarantor until indefeasible payment in full of the Guarantied Obligations (other than unasserted indemnification obligations) and the termination or cancellation of the Credit Agreement and all Specified Swap Contracts in accordance with their respective terms. At the request and sole expense of the Borrower, if any Guarantor is a Subsidiary, it shall be released from its obligations hereunder (i) in accordance with Section 8.12 of the Credit Agreement and (ii) in the event that all the Borrower's Ownership Share of such Guarantor shall be sold, transferred or otherwise disposed of in a transaction permitted by the Credit Agreement.

Section 21. Successors and Assigns. Each reference herein to the Administrative Agent or any other Guarantied Party shall be deemed to include such Person's respective successors and assigns (including, but not limited to, any holder of the Guarantied Obligations) in whose favor the provisions of this Guaranty also shall inure, and each reference herein to each Guarantor shall be deemed to include such Guarantor's successors and assigns, upon whom this Guaranty

also shall be binding. The Guarantied Parties may, in accordance with the applicable provisions of the Credit Agreement and Specified Swap Contracts, assign, transfer or sell any Guarantied Obligation, or grant or sell participations in any Guarantied Obligations, to any Person without the consent of, or notice to, any Guarantor and without releasing, discharging or modifying any Guarantor's obligations hereunder. Each Guarantor hereby consents to the delivery by the Administrative Agent and any other Guarantied Party to any Eligible Assignee or Participant (or any prospective Eligible Assignee or Participant) of any financial or other information regarding the Borrower or any Guarantor. No Guarantor may assign or transfer its obligations hereunder to any Person without the prior written consent of all Lenders and any such assignment or other transfer to which all of the Lenders have not so consented shall be null and void.

Section 22. JOINT AND SEVERAL OBLIGATIONS. THE OBLIGATIONS OF THE GUARANTORS HEREUNDER SHALL BE JOINT AND SEVERAL, AND ACCORDINGLY, EACH GUARANTOR CONFIRMS THAT IT IS LIABLE FOR THE FULL AMOUNT OF THE “GUARANTIED OBLIGATIONS” AND ALL OF THE OBLIGATIONS AND LIABILITIES OF EACH OF THE OTHER GUARANTORS HEREUNDER.

Section 23. Amendments. This Guaranty may not be amended except in writing signed by the Administrative Agent and each Guarantor, subject to Section 13.7 of the Credit Agreement.

Section 24. Payments. All payments to be made by any Guarantor pursuant to this Guaranty shall be made in Dollars, in immediately available funds to the Administrative Agent at its Principal Office, not later than 11:00 a.m. Pacific time, on the date one Business Day after demand therefor.

Section 25. Notices. All notices, requests and other communications hereunder shall be in writing (including facsimile transmission or similar writing) and shall be given (a) to each Guarantor at its address set forth below its signature hereto, (b) to the Administrative Agent or any other Guarantied Party at its address for notices provided for in the Credit Agreement or Specified Swap Contract, as applicable, or (c) as to each such party at such other address as such party shall designate in a written notice to the other parties. Each such notice, request or other communication shall be effective (i) if mailed, when received; (ii) if telecopied, when transmitted; or (iii) if hand delivered, when delivered; provided, however, that any notice of a change of address for notices shall not be effective until received.

Section 26. Severability. In case any provision of this Guaranty shall be invalid, illegal or unenforceable in any jurisdiction, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

Section 27. Headings. Section headings used in this Guaranty are for convenience only and shall not affect the construction of this Guaranty.

Section 28. Limitation of Liability.    Neither the Administrative Agent nor any other Guarantied Party, nor any affiliate, officer, director, employee, attorney, or agent of the Administrative Agent or any other Guarantied Party, shall have any liability with respect to, and each Guarantor hereby waives, releases, and agrees not to sue any of them upon, any claim for any special, indirect, incidental, or consequential damages suffered or incurred by a Guarantor in connection with, arising out of, or in any way related to, this Guaranty or any of the other Credit Documents, the Fee Letter, or any of the transactions contemplated by this Guaranty, the Credit Agreement or any of the other Loan Documents. Each Guarantor hereby waives, releases, and agrees not to sue the Administrative Agent or any other Guarantied Party or any of the Administrative Agent's or any other Guarantied Party's affiliates, officers, directors, employees, attorneys, or agents for punitive damages in respect of any claim in connection with, arising out of, or in any way related to, this Guaranty, the Credit Agreement or any of the other Credit Documents, the Fee Letter, or any of the transactions contemplated by thereby.

Section 29. Electronic Delivery of Certain Information. Each Guarantor acknowledges and agrees that information regarding the Guarantor may be delivered electronically pursuant to Section 9.5 of the Credit Agreement.

Section 30. Time. Time is of the essence with respect to each and every provision of this Guaranty.

Section 31. Definitions. (a) For the purposes of this Guaranty:

“Proceeding” means any of the following: (i) a voluntary or involuntary case concerning any Guarantor shall be commenced under the Bankruptcy Code of 1978, as amended; (ii) a custodian (as defined in such Bankruptcy Code or any other applicable bankruptcy laws) is appointed for, or takes charge of, all or any substantial part of the property of any Guarantor; (iii) any other proceeding under any Applicable Law, domestic or foreign, relating to bankruptcy, insolvency, reorganization, winding-up or composition for adjustment of debts, whether now or hereafter in effect, is commenced relating to any Guarantor; (iv) any Guarantor is adjudicated insolvent or bankrupt; (v) any order of relief or other order approving any such case or proceeding is entered by a court of competent jurisdiction; (vi) any Guarantor makes a general assignment for the benefit of creditors; (vii) any Guarantor shall fail to pay, or shall state that it is unable to pay, or shall be unable to pay, its debts generally as they become due; (viii) any Guarantor shall call a meeting of its creditors with a view to arranging a composition or adjustment of its debts; (ix) any Guarantor shall by any act or failure to act indicate its consent to, approval of or acquiescence in any of the foregoing; or (x) any corporate action shall be taken by any Guarantor for the purpose of effecting any of the foregoing.

(b)    Terms not otherwise defined herein are used herein with the respective meanings given them in the Credit Agreement.

Section 32. Unsecured. As of the date hereof the Loans are unsecured, and references in this Guaranty to “collateral” or to statutes which are applicable in a secured loan context are included simply in case the Loans become secured at any time in the future, though converting the Loans to secured loans is not an option contemplated by the parties at this time.

IN WITNESS WHEREOF, each Guarantor has duly executed and delivered this Guaranty as of the date and year first written above.

HEALTHCARE TRUST OF AMERICA, INC.

Address for Notices for all Guarantors: