Document:

EX-10.1

 Exhibit 10.1 
 LIMITED LIABILITY COMPANY AGREEMENT 
 OF 

42-16 PARTNERS, LLC 
 This Limited Liability Company Agreement (this “Agreement”) of 42-16 Partners, LLC (the “Company”) is entered into as of May 13, 2013, by Blackstone Mortgage Trust,
Inc., a Maryland corporation, as managing member (the “Managing Member”) and Blackstone Holdings Finance Co. L.L.C., a Delaware limited liability company (“Holdings”), as a member of the Company. The Managing Member
and Holdings and each other person admitted to the Company in accordance with the terms of this Agreement are referred to herein individually, as a “Member” and collectively, as the “Members.” 

The Members hereby agree as follows: 
 1. Name. The Company was formed on April 22, 2013 by the filing of a certificate of formation (the “Certificate”) of the Company in the Office of the Secretary of State of the
State of Delaware pursuant to the provisions of the Delaware Limited Liability Company Act, 6 Del. C. §§ 18-101, et seq., (as amended from time to time, and any successor to such statute, the “Act”). The
name of the Company is 42-16 Partners, LLC, or such other name as the Managing Member may from time to time hereafter designate. 
 2. Purpose. 
 (a) Notwithstanding anything to the contrary
in this Agreement or in any other document governing the formation, conversion, management or operation of the Company, the sole purpose to be conducted or promoted by the Company is to engage in the following activities: 

 

	 	(i)	to, acquire, own, hold, lease, operate, manage, maintain, develop, improve, sell, transfer, service, convey, dispose of, pledge, assign, borrow money against, finance,
refinance, foreclose on, or otherwise deal with Company Assets; 

  

	 	(ii)	to enter into and perform its obligations under the Transaction Documents to which the Company is a party and this Agreement; and 

 

	 	(iii)	to engage in any lawful act or activity and to exercise any powers permitted to limited liability companies organized under the laws of the State of Delaware that are
related or incidental to and necessary, convenient or advisable for the accomplishment of the above mentioned purposes. 

 (b) Subject to Section 8(b), the Company, and the Managing Member, or any officer of the Company or the Managing Member on behalf of the Company, may enter

 
into and perform their obligations under the Transaction Documents, this Agreement and all documents, agreements, certificates, or financing statements contemplated thereby or related thereto and
any amendments thereto, all without any further act, vote or approval of any Member, officer of the Company or other Person notwithstanding any other provision of this Agreement, the Act or applicable law, rule or regulation. The foregoing
authorization shall not be deemed a restriction on the powers of the Managing Member or officer of the Company or the Managing Member to enter into other agreements on behalf of the Company. 

3. Registered Office. The registered office of the Company in the State of Delaware is c/o The Corporation Trust Company, 1209
Orange Street, Wilmington, New Castle County, Delaware 19801. 
 4. Registered Agent. The name and address of the
registered agent of the Company for service of process on the Company in the State of Delaware is The Corporation Trust Company, 1209 Orange Street, Wilmington, New Castle County, Delaware 19801. 

5. Definitions. The following terms shall have the respective meanings set forth below: 

“Additional Capital Contributions” has the meaning specified in Section 10(b) hereof. 

“Affiliate” means, as to any Person, any other Person that, directly or indirectly, is in Control of, is
Controlled by or is under common Control with such Person or is a director or officer of such Person or of an Affiliate of such Person. 
 “Business Day” means a day other than a Saturday, Sunday or other day on which commercial banks in New York, New York are authorized or required by applicable law to close. 

“Calculation Date” means, for purposes of computing Net Cash Flow to be distributed with respect to a
particular calendar month, the last day in that month. 
 “Capital Account” has the meaning
specified in Section 14(b) hereof. 
 “Capital Commitments” means, as to any Member, the
amount of such Member’s capital commitment to the Company reflected on Schedule A attached hereto. 

“Class A Voting Unit” means a Unit having the rights and obligations specified with respect to
Class A Voting Units in this Agreement. 
 “Class B Non-Voting Unit” means a Unit having
the rights and obligations specified with respect to Class B Non-Voting Units in this Agreement. 

 “Code” means the Internal Revenue Code of 1986, as amended
from time to time, or any successor statute. Any reference herein to a particular provision of the Code means, where appropriate, the corresponding provision in any successor statute. 

“Commitment Expiration Date” means September 30, 2013, or such later date as may be agreed in
writing by the Members. 
 “Company Assets” means Eligible Assets and Derived Assets.

 “Control” or “control” shall mean the possession, directly or indirectly, of
the power to direct or cause the direction of management, policies or activities of a Person, whether through ownership of voting securities, by contract or otherwise. “Controlled” and “Controlling” shall have
correlative meanings. 
 “Derived Assets” means any assets derived from Eligible Assets of the
Company as a result of foreclosures or other dispositions, payments and distributions thereon or pursuant to protective advances to protect or benefit the recovery thereof and as encumbered by and associated liabilities. 

“Effective Date” means May 13, 2013. 

“Eligible Assets” means performing whole mortgage loans or Senior Interests in performing whole mortgage
loans secured by first liens on commercial properties. 
 “Fiscal Period” means each fiscal
quarter or such other period as may be established by the Managing Member. 
 “Interest” means
the entire limited liability company interest of a Member in the Company at any particular time, including the right of such Member to any and all benefits to which a Member may be entitled as provided in this Agreement, together with the
obligations of such Member to comply with all the terms and provisions of this Agreement. Interests shall be represented by Units. 
 “Letter Agreement” means the letter agreement among the Company, Holdings and the Managing Member dated as of May 13, 2013, as amended, restated or supplemented or otherwise modified
from time to time. 
 “Net Cash Flow” has the meaning specified in Section 11 hereof.

 “Person” means any individual, corporation, partnership, limited liability company, joint
venture, association, joint stock partnership, trust (including any beneficiary thereof), unincorporated organization, or government or any agency or political subdivision thereof. 

“Regulatory Allocations” has the meaning specified in Section 14(d) hereof. 

 “Senior Interests” means an “A Note” in an
“A/B structure” in a commercial real estate loan. 
 “Special Purpose Provisions” has
the meaning specified in Section 8(b) hereof. 
 “Tax Advance” has the meaning specified in
Section 14 hereof. 
 “Transaction Documents” means: (i) all documents and
certificates contemplated or delivered in connection with the acquisition, ownership, holding, lease, operation, management, maintenance, development, improvement, sale, transfer, service, conveyance, disposal of, pledge, assignment, borrowing money
against, financing, refinancing, foreclosing on, or otherwise dealing with Company Assets; and (ii) the Letter Agreement. 
 “Treasury Regulations” means the regulations, including temporary regulations or any successor regulations promulgated under the Code, as amended from time to time. 

“Unit” means a fractional share of the Interests of all Members in the Company, which is designated as a
Unit, and having the rights and obligations specified with respect thereto in this Agreement and shall include Class A Voting Units and Class B Non-Voting Units. The number of Units outstanding and the holders thereof are set forth on
Schedule A, as Schedule A may be amended from time to time pursuant hereto. 
 6. Members. The names and
the addresses of the Managing Member and any other Members are set forth on Schedule A, as the same may be amended from time to time. The Members shall have the power to exercise only those rights and powers granted to the Members pursuant to the
express terms of this Agreement. Except as specifically provided herein or by the Managing Member, the Members shall have no power or authority to act for or on behalf of, or to bind, the Company. 

7. Units. The Units initially issued to the Managing Member on the Effective Date shall be Class A Voting Units, and the
Units initially issued to Holdings on the Effective Date shall be Class B Non-Voting Units. Unless and until the Managing Member shall determine otherwise, Units shall be uncertificated and recorded in the books and records of the Company (including
Schedule A). If at any time the Board shall determine to certificate Units, such certificates shall bear a legend on the face thereof in such form as counsel to the Company may advise. 

8. Management. 
 (a) Subject to Section 8(b), the management and control of the Company shall be vested entirely in the Managing Member. Subject to Section 8(b), the Managing Member shall have all the rights and
powers that are conferred by law or are otherwise necessary, advisable or convenient to the discharge of the Managing Member’s duties and to the management of the business and affairs of the Company. No person or entity dealing with the Company
shall have any obligation to inquire into the power or authority of the Managing Member acting for such purposes on behalf of the Company. 

 (b) This Section 8(b) is being adopted in order to comply with certain
provisions required in order to qualify the Company as a “special purpose” entity. Notwithstanding anything to the contrary in this Agreement or in any other document governing the formation, management or operation of the Company, and any
provision of law that so empowers the Company, this Section 8(b) shall control. As long as any Class B Non-Voting Units remain outstanding, the Managing Member shall: 

 

	 	(i)	not amend, alter, change any of Sections 2, 5, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20 or 21 or Schedule A of this Agreement (the “Special Purpose
Provisions”), or any other provision of this or any other document governing the formation, management or operation of the Company in a manner that is inconsistent with any of the Special Purpose Provisions. Subject to this
Section 8(b), the Members reserve the right to amend, alter, change or repeal any provisions contained in this Agreement in accordance with Section 21; 

 

	 	(ii)	cause the Company to do or cause to be done all things necessary to preserve and keep in full force and effect its existence, rights (charter and statutory) and
franchises. The Managing Member also shall cause the Company to and the Company shall: 

  

	 	(A)	comply with all organizational formalities necessary to maintain its separate existence; 

 

	 	(B)	maintain adequate capital in light of its contemplated business purpose, transactions and liabilities; provided, however, that the foregoing shall not
require the Managing Member to make additional capital contributions to the Company; 

  

	 	(D)	observe all Delaware limited liability company formalities; 

  

	 	(E)	maintain its assets in such a manner that it will not be costly or difficult to segregate, ascertain or identify its individual assets from those of any other Person;

  

	 	(G)	maintain its existence in good standing under the applicable jurisdiction of its formation; and 

 

	 	(H)	cause the officers, agents and other representatives of the Company to act at all times with respect to the Company consistently and in furtherance of the foregoing and
in the best interests of the Company; and 

	 	(iii)	except as permitted under or contemplated by the Transaction Documents, not cause or permit the Company to, and the Company shall not: 

 

	 	(A)	engage, directly or indirectly, in any business other than as required or permitted to be performed under Section 2, the Transaction Documents or this
Section 8(b); 

  

	 	(B)	own any asset or property other than the Company Assets and incidental personal property necessary for the ownership or operation of the Company Assets.;

  

	 	(C)	incur, create or assume any indebtedness or liabilities other than indebtedness and liabilities incurred in the ordinary course of its business that are related to the
ownership and operation of the Company Assets and are expressly permitted under the Transaction Documents; 

  

	 	(D)	make or permit to remain outstanding any loan or advance to, or own or acquire any stock or securities of, any Person, except that the Company may own and acquire the
Company Assets and invest in those investments permitted under the Transaction Documents; 

  

	 	(E)	guarantee or pledge its assets to secure any obligation of any Person, including any Affiliate or become obligated for the debts of any other Person or hold out its
credit as being available to pay the obligations of any other Person; 

  

	 	(F)	enter into any contract or agreement with any of its Affiliates, other than on terms and conditions that are substantially similar to those that would be available on
an arm’s-length basis with Persons other than such Affiliate; or 

  

	 	(G)	engage in any dissolution, liquidation, consolidation, merger, sale or other transfer of any of its assets outside the ordinary course of the Company’s business.

 9. Officers. The following persons are officers of the Company, holding the
respective offices set forth opposite their names, and are each duly authorized to act on behalf of the Company in their capacity as an officer of the Company: 
  

			
	 Name
	  	 Office

		
	 Michael B. Nash
	  	Executive Chairman
		
	 Stephen D. Plavin
	  	Chief Executive Officer and President
		
	 Geoffrey G. Jervis
	  	Chief Financial Officer, Treasurer and Assistant Secretary
		
	 Randall S. Rothschild
	  	Secretary and Managing Director, Legal and Compliance
		
	 Thomas C. Ruffing
	  	Managing Director, Asset Management
		
	 Douglas N. Armer
	  	Principal, Head of Capital Markets
		
	 Anthony F. Marone, Jr.
	  	Vice President, Assistant Treasurer and Controller

 Such officers are hereby each designated as an “authorized person” within the meaning of the
Act, and are hereby empowered to execute, deliver and file any other certificates (and any amendments and/or restatements thereof) necessary for the Company to qualify to do business in a jurisdiction in which the Company may wish to conduct
business, and such other documents, instruments, certificates and agreements as may be necessary or desirable in furtherance of the Company’s purposes. 
 10. Capital Contributions. 
 (a) As of the Effective Date,
the Managing Member contributed $16.67 and Holdings contributed $83.33 to the capital of the Company. 
 (b) Each
Member shall be required to make additional capital contributions (“Additional Capital Contributions”) to the Company in cash upon the terms and conditions, at the times and in the amounts as set forth in this Section 10. No
Member shall be required to make any further payments to the Company during the term of this Agreement except as specifically required in this Agreement. In the event that further funds are required by the Company for any purpose contemplated in
Section 2 hereof (including to pay the expenses of the Company in excess of the funds available from any prior contributions of Additional Capital Contributions and the Net Cash Flows), then the Members shall make Additional Capital
Contributions in cash to pay those obligations as set forth herein. Notwithstanding anything herein to the contrary, the Managing Member shall not be required to make Additional Capital Contributions to the Company in excess of $10,000,000 in the
aggregate and Holdings shall not be required to make Additional Capital Contributions to the Company in excess of $50,000,000 in the aggregate. 
 (c) Whenever the Members are required to make Additional Capital Contributions to the Company as provided in this Section 10, each Member shall be obligated to contribute its share of the requested
Additional Capital Contribution in cash in an amount equal to (a) that Member’s respective percentage interest in the Company as 

 
reflected on Schedule A attached hereto, as amended from time to time, multiplied by (b) the aggregate dollar amount of the requested Additional Capital Contribution. To satisfy any
call for an Additional Capital Contribution, a Member shall cause to be paid to the Company, by the date specified by the Managing Member, which date shall not be less than two days following notice from the Managing Member, the full amount of such
Member’s share of the requested Additional Capital Contribution in immediately available funds. 
 (d) Each
Member’s obligation to fund any portion of its Capital Commitment shall terminate upon the Commitment Expiration Date. 

11. Distributions. Not later than 10 days after the applicable Calculation Date, the Managing Member shall determine the amount of
cash, if any, which in its judgment is in excess of amounts necessary or appropriate for operations, expenses and reserves of the Company. Such excess (the “Net Cash Flow”) shall, as soon as possible following the applicable
Calculation Date, but in no event later than three Business Days following the determination of Net Cash Flow, be distributed to the Members in accordance with this Section 11. The Net Cash Flow of the Company shall not be reduced by
depreciation, amortization, cost recovery deductions, depletion, similar allowances or other noncash items, but shall be increased by any release or reduction of reserves previously established (other than for the payment of expenses reserved
against). The Net Cash Flow of the Company shall be calculated effective as of the applicable Calculation Date with respect to which the Net Cash Flow is being distributed, regardless of the actual date of distribution. Distributions of Net Cash
Flow shall be made in accordance with a Member’s respective percentage interest in the Company as reflected on Schedule A attached hereto, as amended from time to time. 
 12. Dissolution. The Company shall be dissolved and its affairs shall be wound up upon a decision made at any time by all of the Members to dissolve the Company. In the absence of such a decision
by the Members, the Company shall be dissolved and its affairs wound up as specifically required by the Act. 
 13.
Liquidation. Upon a dissolution pursuant to Section 12, the Company’s business and assets shall be liquidated in an orderly manner. The Managing Member or its designee shall be the liquidator to wind up the affairs of the Company.
In performing their duties, the liquidators are authorized to sell, distribute, exchange or otherwise dispose of Company assets in accordance with the Act in any manner that the liquidator shall determine. The assets of the Company shall be
distributed in the following manner and order: (i) to the payment of the expenses of the winding up, liquidation and dissolution of the Company; (ii) to pay all creditors of the Company, other than Members, either by the payment thereof or
the making of reasonable provision therefor; (iii) to establish reserves, in amounts established by the Managing Member to meet other liabilities of the Company; and (iv) to pay, in accordance with the terms agreed among them and otherwise
on a pro rata basis, all creditors of the Company that are Members, either by the payment thereof or the making of reasonable provision therefor. The remaining assets of the Company shall be applied and distributed among the Members in accordance
with the respective percentage interests in the Company held by the Members as reflected in Schedule A attached hereto, as amended from time to time. 

 14. Books and Reports; Capital Accounts; Allocations. 

(a) General Accounting Matters. Allocations of income and loss pursuant to Section 14(c) shall be made by or
under the direction of and approved by the Managing Member at the end of each Fiscal Period. 
 (b) Capital
Accounts. There shall be established for each Member on the books of the Company as of the date hereof, or such later date on which such Member is admitted to the Company, a capital account (each being a “Capital Account”). Each
capital contribution and Additional Capital Contribution shall be credited to the Capital Account of such Member on the date such contribution of capital is paid to the Company. In addition, each Member’s Capital Account shall be
(a) credited with (i) such Member’s allocable share of any net income of the Company and (ii) any items of income or gain which are specially allocated pursuant to Section 14(d), (b) debited with (i) distributions
to such Member of cash or the fair market value of other property (net of liabilities assumed by such Member and the liabilities to which such property is subject), (ii) such Member’s allocable share of net loss of the Company and
(iii) any items of loss or deduction specially allocated to such Member pursuant to Section 14(d), and (c) otherwise maintained in accordance with the provisions of the Code. Capital Accounts shall be appropriately adjusted to reflect
transfers of part (but not all) of a Member’s interest in the Company. The Managing Member shall make such adjustments to Capital Accounts as it determines in its sole discretion to be appropriate. Interest shall not be payable on Capital
Account balances. 
 (c) Allocations of Income (Loss). Income and loss of the Company shall be allocated
to the Members in a manner that as closely as possible gives economic effect to the provisions of this Agreement. The Managing Member may make any such allocations as it deems reasonably necessary to give economic effect to the provisions of this
Agreement, taking into account such facts and circumstances as the Managing Member deems reasonably necessary for this purpose. 
 (d) Special Allocations. 
 (i) Notwithstanding any other
provision of this Agreement, (i) “partner nonrecourse deductions” (as defined in Treasury Regulations Section 1.704-2(i)), if any, of the Company shall be allocated for each fiscal year to the Member that bears the economic risk
of loss within the meaning of Treasury Regulations Section 1.704-2(i), and (ii) “nonrecourse deductions” (as defined in Treasury Regulations Section 1.704-2(b)) and “excess nonrecourse liabilities” (as defined in
Treasury Regulations Section 1.752-3(a)), if any, shall be allocated to and among the Members in accordance with their relative economic interests in the Company as determined by the Managing Member. 

(ii) This Agreement shall be deemed to include “qualified income offset,” “minimum gain chargeback”
and “partner nonrecourse debt minimum gain chargeback” provisions within the meaning of Treasury Regulations under Section 704(b) of the Code. 

 (iii) Any allocations required to be made pursuant to Sections 14(d)(i) or
(ii) (the “Regulatory Allocations”) (other than allocations, the effect of which are likely to be offset in the future by other special allocations) shall be taken into account, to the extent permitted by the Treasury
Regulations, in computing subsequent allocations of income, gain, loss or deduction pursuant to Section 14(c) so that the net amount of any items so allocated and all other items allocated to each Member shall, to the extent possible, be equal
to the amount that would have been allocated to each Member pursuant to Section 14(c) had such Regulatory Allocations not occurred. 
 (e) Tax Allocations. All items of income, gain, loss, deduction and credit of the Company shall be allocated among the Members for U.S. federal, state and local income tax purposes consistent with
the manner that the corresponding items have been allocated among the Members pursuant to this Agreement. To the extent Treasury Regulations promulgated pursuant to Subchapter K of the Code (including under Sections 704(b) and (c) of the Code)
require allocations for tax purposes that differ from the foregoing allocations, the Managing Member may determine the manner in which such tax allocations shall be made so as to comply more fully with such Treasury Regulations or other applicable
law and, at the same time to the extent reasonably possible, preserve the economic relationships among the Members as set forth in this Agreement. 
 15. Withholding Taxes. Notwithstanding anything to the contrary contained in this Agreement, each Member hereby authorizes the Company to withhold and to pay over, or otherwise pay, any withholding
or other taxes that are required to be paid by the Company (pursuant to the Code or any provision of U.S. federal, state or local or non-U.S. tax law) with respect to such Member (a “Tax Advance”). If and to the extent that the
Company shall be required to withhold or pay any such withholding or other taxes, or any withholding or other taxes are imposed on the receipts of the Company, such Member shall be deemed for all purposes of this Agreement to have received a
distribution from the Company as of the time such withholding or other tax is paid, which payment shall be deemed to be a distribution pursuant to Section 14 with respect to such Member’s interest in the Company. Each Member hereby agrees
to indemnify and hold harmless the Company and the Managing Member and each other Member from and against any liability, claim or expense with respect to any such Tax Advance withheld or required to be withheld on behalf of or with respect to such
Member. In the event the Company is liquidated and a liability or claim is asserted against, or expense borne by, the Managing Member or any Member for any Tax Advance, the Company shall have the right to be reimbursed from the Member on whose
behalf such withholding or tax payment was made or required to be made. 
 16. Restrictions on Transfer. No Member may
sell, assign, dispose of, or otherwise transfer, pledge or encumber all or any part of its membership interest or economic interest in the Company at any time without the consent of all of the other Members. 

17. Admission of Additional or Substitute Members. Additional or substitute Members may be admitted to the Company only with the
approval of all of the Members. In addition to any other requirements set forth in this Agreement, no Person shall be admitted to the Company as an additional or substitute Member unless and until such Person has accepted and agreed to all of the
provisions of this Agreement by executing a counterpart signature page hereto or an amendment of this Agreement. 

 18. Liability of Members. No Member shall have any liability for the obligations or
liabilities of the Company except to the extent expressly provided in the Act. 
 19. Bankruptcy of a Member. The
occurrence of any event set forth in Section 18-304 of the Act (Events of Bankruptcy) with respect to a Member (or similar bankruptcy or insolvency event under any law or statute governing such Member ) shall not cause such Member to cease to
be a Member of the Company and, upon the occurrence of such an event, the Company shall continue without dissolution. 
 20.
Indemnification. The Company (the “Indemnitor”) shall indemnify and hold harmless the Members, their Affiliates and subsidiaries, and all officers, directors, partners, employees, and agents of any of the foregoing (each, an
“Indemnitee”) to the full extent permitted by law from and against any and all losses, claims, demands, costs, damages, liabilities, joint and several, expenses of any nature (including attorneys’ fees and disbursements),
judgments, fines, settlements and other amounts arising from any and all claims, demands, actions, suits or proceedings, civil, criminal, administrative or investigative, in which the Indemnitee may be involved, or threatened to be involved as a
party or otherwise, arising from, or in connection with, the performance of any action by such Indemnitee for, on behalf of, or otherwise in connection with, the Company. 
 21. Amendments. This Agreement may be amended only by written instrument executed by all of the Members. 
 22. Benefits of Agreement. None of the provisions of this Agreement shall be for the benefit of or enforceable by any creditor of the Company or by any creditor of any Member. 

23. Governing Law. This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware, with
all rights and remedies hereunder being governed by said laws, without regard to conflict of law rules. 
 24. Authorized
Person. Jason Pearl is hereby designated as an “authorized person” within the meaning of the Act, and has executed, delivered and filed the Certificate with the Secretary of State of the State of Delaware. Upon the filing of the
Certificate with the Secretary of State of Delaware, Jason Pearl’s powers as an “authorized person” ceased, and the Managing Member thereupon became an authorized person, within the meaning of the Act, to execute, deliver and file any
other certificates (and any amendments and/or restatements thereof) necessary for the Company to qualify to do business in a jurisdiction in which the Company may wish to conduct business. 

25. Company Tax Treatment. The Members intend for the Company to be treated as a partnership for U.S. federal income tax purposes
and no election to the contrary shall be made. 
 26. Tax Reports. The Managing Member, at the Company’s expense,
shall cause the Company to prepare and file, in a timely manner, all tax returns of the Company for each 

 
taxable year of the Company. The Company shall transmit to each Member information necessary for the preparation of each Member’s federal, state and local tax returns, including a Schedule
K-1 or other applicable form showing each Member’s pro rata share of income, credit and deductions for the prior taxable year, which information shall be transmitted to each Member by 90 days following the last day of the prior taxable year.

 27. Tax Matters Member. The Managing Member shall serve as the “tax matters partner” of the Company, as such
term is defined in Section 6231(a)(7) of the Code. The Managing Member, in its capacity as “tax matters partner” of the Company, shall promptly furnish the Internal Revenue Service with information, if any, sufficient to cause each
Member to be treated as a “notice partner” as defined in Section 6231(a)(8) of the Code. 
 [Remainder of page
intentionally left blank] 

 IN WITNESS WHEREOF, the undersigned, intending to be legally bound hereby, have duly
executed this Limited Liability Company Agreement as of the date first above written. 
  

			
	MANAGING MEMBER:
	
	 BLACKSTONE MORTGAGE TRUST, INC.,
 a Maryland corporation

		
	By:	 	 /s/ Geoffrey G. Jervis

	Name:	 	Geoffrey G. Jervis
	Title:	 	Chief Financial Officer
	
	OTHER MEMBERS:
	
	 BLACKSTONE HOLDINGS FINANCE CO. L.L.C.,
 a Delaware limited liability company

		
	By:	 	 /s/ Kathleen Skero

	Name:	 	Kathleen Skero
	Title:	 	Authorized Signatory

 Schedule A 

 

											
	Member (Address)	  	Capital Commitment	 	  	Percentage Interest	 	 	Number of Units
				
	 Blackstone Mortgage Trust, Inc.

345 Park Avenue, 42nd Floor

New York, New York 10154
	  	$	10,000,000	  	  	 	16.667	% 	 	100 Class A Voting
Units
				
	 Blackstone Holdings Finance Co. L.L.C.

 
 c/o The Blackstone Group L.P.

345 Park Avenue, 10th Floor

New York, New York 10154
	  	$	50,000,000	  	  	 	83.333	% 	 	500 Class B Non-
 Voting
Units

				
	 Total:
	  	$	60,000,000	  	  	 	100.000	% 	 	600 UnitsEX-10.2

 Exhibit 10.2 
 Blackstone Holdings Finance Co. L.L.C. 
 c/o The Blackstone Group L.P.

 345 Park Avenue 
 New York, New York 10154 
 May 13, 2013 

Blackstone Mortgage Trust, Inc. 
 345 Park
Avenue, 10th Floor 
 New York, NY 10154 

			
	Email:	  	splavin@blackstone.com
		  	gjervis@blackstone.com

			
	Attention:	  	Stephen D. Plavin
		  	Geoffrey G. Jervis

	

 Ladies and Gentlemen: 

Reference is hereby made to that certain Limited Liability Company Agreement of 42-16 Partners, LLC, a Delaware limited liability
company (the “Company”), dated as of the date hereof (the “JV Agreement”), among Blackstone Mortgage Trust, Inc., a Maryland corporation (“Blackstone Mortgage Trust”), as managing member, Blackstone
Holdings Finance Co. L.L.C., a Delaware limited liability company (“Holdings”), as a member and each other person admitted to the Company as a member. Capitalized terms used herein but not otherwise defined herein shall have the
meanings assigned to such terms in the JV Agreement.  
 As of the date hereof, Holdings holds 500 Class B Non-Voting
Units of the Company (representing a 83.333% interest in the Company) and Capital Trust holds 100 Class A Voting Units of the Company (representing a 16.667% interest in the Company). 

In connection with the contemplated public offering for cash by Blackstone Mortgage Trust of its class A common stock, par value $0.01
per share (“Public Offering”), Capital Trust and Holdings hereby agree as follows: 
  

	 	I.	Purchase and Sale 

Blackstone Mortgage Trust agrees to pay or cause to be paid, contemporaneously with the closing (such date, the “Closing
Date”) of a Public Offering the gross proceeds of which exceed $150.0 million, an amount in cash equal to 83.333% of the difference between (x) the fair value of the consolidated assets of the Company and (y) the consolidated
liabilities of the Company, in each case as of the most recent practicable date prior to the closing of the Public Offering and calculated by officers of Blackstone Mortgage Trust in accordance with generally accepted accounting principles in the
United States (such amount, the “Purchase Price”), in exchange for all of Holdings’ right, title and interest in and to its Class B Non-Voting Units of the Company (representing a 83.333% interest in the Company) (the
“Transferred Interests”). 

 Upon receipt of the Purchase Price, Holdings shall be deemed to have resigned as a member of
the Company. Notwithstanding anything in the JV Agreement to the contrary, such resignation and withdrawal shall not dissolve the Company and the Company shall continue without dissolution. 

Blackstone Mortgage Trust, in its capacity as Managing Member and Holdings as Member, each hereby gives its prior written consent to the
sale of the Transferred Interests in accordance with the terms of this letter agreement. 
  

	 	II.	Purchase Price Adjustment 

 Within 30 days after the Closing Date, Blackstone Mortgage Trust shall cause its officers to prepare and deliver to Holdings a calculation of the Purchase Price of the Company as of the Closing Date (the
“Final Purchase Price”) (including the components thereof in reasonable detail to permit Holdings’ review of such calculations), calculated in accordance with generally accepted accounting principles in the United States and
consistent with the Company’s past practice. If Holdings in good faith disagrees with Blackstone Mortgage Trust’s calculation of the Final Purchase Price, Holdings may within 10 days after receipt thereof deliver a written notice of
disagreement to Blackstone Mortgage Trust specifying in reasonable detail those items or amounts comprising the Final Purchase Price as to which Holdings disagrees and the basis of such a disagreement. If no such notice of disagreement is timely
received, or if Holdings confirms its agreement with the calculation of the Final Purchase Price, Final Purchase Price shall be final and binding on the parties hereto, and (i) if the Final Purchase Price is greater than the Purchase Price,
then Blackstone Mortgage Trust shall pay to Holdings, as an adjustment to the Purchase Price, an amount in cash equal to such difference or (ii) of the Final Purchase Price is less than the Purchase Price, then Holdings shall pay to Blackstone
Mortgage Trust, as an adjustment to the Purchase Price, an amount in cash equal to such difference. 
 If a notice of
disagreement is timely delivered, Blackstone Mortgage Trust and Holdings shall, during the seven days following such delivery, use their commercially reasonable efforts to reach a written agreement on the disputed items. If such written agreement is
reached, the Final Purchase Price, as so agreed, shall be final and binding on the parties hereto, and (i) if the Final Purchase Price is greater than the Purchase Price, then Blackstone Mortgage Trust shall pay to Holdings, as an adjustment to
the Purchase Price, an amount in cash equal to such difference or (ii) of the Final Purchase Price is less than the Purchase Price, then Holdings shall pay to Blackstone Mortgage Trust, as an adjustment to the Purchase Price, an amount in cash
equal to such difference. 
 If the parties are unable to reach an agreement in writing within a period of 30 days after
Holdings’ notice of disagreement is received by Blackstone Mortgage Trust, each of Blackstone Mortgage Trust and Holdings will retain a nationally recognized accounting firm (each, an “Appraiser”) to determine the Final
Purchase Price. The average of the Final Purchase Price determinations by the by the two Appraisers shall be final and binding upon the parties, and (i) if the Final Purchase Price is greater than the Purchase Price, then Blackstone Mortgage
Trust shall pay to Holdings, as an adjustment to the Purchase Price, an amount in cash equal to such difference or (ii) of the Final Purchase Price is less than the Purchase Price, then Holdings shall

 
pay to Blackstone Mortgage Trust, as an adjustment to the Purchase Price, an amount in cash equal to such difference. The fees and expenses of the Appraiser for services rendered in reviewing and
settling any disputes shall be borne and paid equally by Blackstone Mortgage Trust and Holdings. 
  

	 	III.	Miscellaneous 

 In
the event that any provision hereof would, under applicable law, be invalid or unenforceable in any respect, such provision shall be construed by modifying or limiting it so as to be valid and enforceable to the maximum extent compatible with, and
possible under, applicable law. The provisions hereof are severable, and in the event any provision hereof should be held invalid or unenforceable in any respect, it shall not invalidate, render unenforceable or otherwise affect any other provision
hereof. 
 Each of the parties hereto agrees to cooperate at all time from and after the date hereof with respect to all of the
matters described herein, and to execute such further assignments, releases, assumptions, notifications and other documents as may be reasonably requested for the purpose of giving effect to, or evidencing or giving notice of, the transactions
contemplated by this letter agreement. 
 The provisions of this letter agreement shall be binding upon and inure to the benefit
of the parties hereto and their respective successors and assigns. 
 This letter agreement may be signed in any number of
counterparts, each of which shall be deemed an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. Delivery of an executed counterpart of a signature page to this Agreement by facsimile or other
electronic transmission shall be effective as delivery of a manually executed counterpart of the same. 
 This letter agreement
shall be governed by, and interpreted in accordance with, the laws of the State of New York, all rights and remedies being governed by such laws. 
 [Signature Pages Follow] 

 Please acknowledge your agreement to the foregoing by executing this letter agreement in the
space provided below. 
  

			
	Yours truly,
	
	BLACKSTONE HOLDINGS FINANCE CO. L.L.C.
		
	By:	 	 /s/ Kathleen Skero

	Name:	 	Kathleen Skero
	Title:	 	Authorized Signatory

 Accepted and Agreed as of the date hereof: 

 

			
	BLACKSTONE MORTGAGE TRUST, INC.
		
	By:	 	 /s/ Geoffrey G. Jervis

	Name:	 	Geoffrey G. Jervis
	Title:	 	Chief Financial Officer

 By its signature below, 42-16 Partners, LLC hereby agrees to be bound by the terms of this Agreement.

  

			
	42-16 PARTNERS, LLC
		
	By:	 	BLACKSTONE MORTGAGE TRUST, INC., its managing member
		
	By:	 	 /s/ Geoffrey G. Jervis

	Name:	 	Geoffrey G. Jervis
	Title:	 	Chief Financial Officer

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