Document:

Exhibit 10.12 

   

  MANAGEMENT SERVICES AGREEMENT

   

  This Management Services Agreement (this “Agreement”) is entered into as of February 5, 2015 (the “Effective

      Date”), by and between Tectonic Services, LLC, a Texas limited liability company (“Manager”), and Tectonic Advisors, LLC, a Texas limited liability company (the “Company”). Manager and the Company are sometimes each individually
    referred to herein as a “Party” and collectively as the “Parties”.

   

  WHEREAS, the Company is governed by that certain Company Agreement, dated as of February 5, 2015 (the “Company

      Agreement”), by and among those individuals designated as members therein (the “Members”), and Manager, as the manager;

   

  WHEREAS, Manager has the ability to provide certain management services to assist the Company in conducting
    its business operations and accomplishing its strategic objectives; and

   

  WHEREAS, the Company desires to retain Manager to provide such services, and Manager is willing to make
    available to the Company such services, on the terms and conditions herein set forth;

   

  NOW, THEREFORE, in consideration of the mutual covenants and agreements hereinafter set forth and for
    other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

   

  ARTICLE 1 

    SERVICES

   

  1.1           Engagement. The Company hereby engages
    Manager, and Manager hereby agrees, upon the terms and subject to the conditions set forth herein, to provide, or cause any of its Affiliates to provide, management services to the Company, as described in Section 1.2 hereof, subject to the rights of
    the Members set forth in the Company Agreement or as otherwise provided by law, including the Texas Business Organizations Code. For purposes of this Agreement, an “Affiliate” of any specified person is a person that directly, or indirectly
    through one or more intermediaries, controls, or is controlled by, or is under common control with, the person specified.

   

  1.2           Services. Manager or any of its Affiliates shall provide the Company with business and
    organizational strategy, financial and investment management and advisory services, as the Company may reasonably request from time to time, in accordance with and as set forth in Article V of the Company Agreement (the “Services”).

   

  1.3           Authorization to Act. In recognition of the fact that some of the Services will require
    that personnel employed by Manager or its Affiliates engage in business dealings with customers, vendors or others with whom the Company does business, and that it is to the Company’s advantage for such business dealings to be conducted on behalf of
    and in the name of the Company, the Company hereby authorizes Manager to use the Company’s name, whenever necessary or appropriate in providing the Services hereunder, subject to the provisions hereof or as may limited in the Company Agreement.

    

  
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  ARTICLE 2

  COMPENSATION FOR SERVICES

   

  2.1           Management Fee. In consideration of the
    Services to be rendered by Manager hereunder, the Company shall pay to Manager a monthly management fee in the amount of $25,000, which fee shall be payable in advance, plus Out-of-Pocket Expenses (defined below).

   

  2.2           Reimbursement of Out-of-Pocket Expenses. In addition to the payments required under Section
    2.1 above, the Company shall, at the direction of Manager, pay directly or reimburse Manager for Out-of-Pocket Expenses (as hereinafter defined). For purposes of this Agreement, the term “Out-of-Pocket Expenses” shall mean the reasonable amounts
    incurred by Manager and/or its personnel from products and/or services of unaffiliated third parties delivered to the Company or Manager and/or their respective personnel in connection with the Services including, without limitation, (i) fees and
    disbursements of auditors, attorneys and other advisors or consultants, (ii) costs of any outside services of independent contractors such as financial printers, couriers, business publications or similar services and (iii) all other reasonable
    expenses actually incurred by Manager and/or its personnel in rendering the Services. All direct payments and reimbursements for Out-of-Pocket Expenses shall be made promptly upon or as soon as practicable after presentation by Manager to the Company
    of a statement in reasonable detail in connection therewith.

   

  ARTICLE 3

  STANDARD OF PERFORMANCE; LIMITATIONS

   

  3.1           Standard of Performance. Manager
    shall have the right, consistent with and subject to the provisions of this Agreement and the Company Agreement, to determine, the method, manner and means by which the Services will be performed. MANAGER DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
    STATUTORY OR OTHERWISE, WITH RESPECT TO THE SERVICES.

   

  3.2           Limitation of Liability; Disclaimer. Neither Manager nor any of its officers,
    directors, managers, principals, stockholders, partners, members, employees, agents, attorneys, representatives and Affiliates (each a “Related Party” and, collectively, the “Related Parties”) shall be liable to the Company or any of its
    Affiliates for any loss, liability, damage or expense arising out of or in connection with the performance of any Services contemplated by this Agreement, unless such loss, liability, damage or expense shall be proven to result directly from the
    willful misconduct or fraudulent acts or omissions of Manager or such Related Party. In no event will Manager or any of its Related Parties be liable to the Company for special, indirect, punitive or consequential damages, including, without
    limitation, loss of profits or lost business, even if Manager has been advised of the possibility of such damages. Under no circumstances will the liability of Manager and Related Parties exceed, in the aggregate, the fees actually paid to Manager
    hereunder.

   

  
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  ARTICLE 4

  INDEMNIFICATION

   

  The Company shall indemnify and hold harmless Manager and each of its Related Parties (each, an “Indemnified

      Party”) from and against any and all losses, claims, actions, damages and liabilities, joint or several, to which such Indemnified Party may become subject under any applicable statute, law, ordinance, regulation, rule, code, order, constitution,
    treaty, common law, judgment or decree, made by any third party or otherwise, relating to or arising out of the Services or other matters referred to in or contemplated by this Agreement or the engagement of such Indemnified Party pursuant to, and the
    performance by such Indemnified Party, of the Services or other matters referred to or contemplated by this Agreement, and the Company will reimburse any Indemnified Party for all costs and expenses (including, without limitation, reasonable attorneys’
    fees and expenses) as they are incurred in connection with the investigation of, preparation for or defense of any pending or threatening claim, or any action or proceeding arising therefrom, whether or not such Indemnified Party is a Party thereto.
    The Company will not be liable under the foregoing indemnification provision to the extent that any loss, claim, damage, liability, cost or expense is determined by a court, in a final judgment from which no further appeal may be taken, to have
    resulted solely from the willful misconduct or fraudulent acts or omissions of such Indemnified Party. The reimbursement and indemnity obligations of the Company, under this Article 4 shall be in addition to any liability which the Company may
    otherwise have, shall extend upon the same terms and conditions to any Affiliate of Manager and any Related Party or controlling persons (if any), as the case may be, of Manager and any such Affiliate and shall be binding upon and inure to the benefit
    of any successors, assigns, heirs and personal representatives of the Company, Manager, any such Affiliate and any such Related Party or other person. The provisions of this Article 4 shall survive the termination of this Agreement.

   

  ARTICLE 5

  RECORDS

   

  All records, to the extent solely relating to the operations of the Company, including, without limitation,
    all books of account and general administrative records, shall be and remain the sole property of the Company.

   

  ARTICLE 6

  RELATIONSHIP OF THE PARTIES; THIRD PARTY BENEFICIARY

   

  6.1           Independent Contractor. Manager is an
    independent contractor under this Agreement. Except as expressly set forth herein, Manager does not have the authority to, and Manager hereby agrees that it shall not, directly or indirectly, contract for any obligations of any kind in the name of or
    chargeable against the Company without the prior written consent of the Company. All persons providing services to the Company shall be employees or independent contractors under the supervision of Manager, and shall not be employees of the Company
    with respect to such services. As such, Manager shall furnish all materials, supplies and personnel necessary to perform its obligations hereunder, and Manager shall have the sole responsibility of paying the salaries, taxes and all other expenses
    relating to each employee of Manager, including those employees that provide services to the Company pursuant to this Agreement.

   

  6.2           Third Party Beneficiary. On or about the Effective Date, A. Haag Sherman (“Sherman”)

    became the Chief Executive Officer and a manager of Manager, which is (a) the manager of Tectonic Holdings, LLC, a Texas limited liability company, which is the sole member of the Company, and (b) the manager of the Company. The Parties acknowledge
    that Sherman would not have undertaken these positions with Manager without Manager agreeing to continue to provide to the Company the Services set forth herein. Therefore, the Parties hereby agree that Sherman shall be, and is hereby, named as an
    express third-party beneficiary of this Agreement, with full rights as such.

   

  
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  ARTICLE 7

  TERM AND TERMINATION

   

  7.1           Term and Termination. The term of this
    Agreement shall commence on the Effective Date and continue thereafter until the earliest of:

   

  (a)       the payment in full of the indebtedness evidenced by those certain promissory notes executed by
    FMR (defined below) in favor of Dental Community Financial Holdings, Ltd.; or

   

  (b)       the dissolution or liquidation of either Party.

   

  7.2           Termination for Breach. This Agreement may be terminated for cause by either Party,
    if the other Party breaches any material provision of this Agreement and fails to cure the breach within thirty (30) days of receiving written notice thereof.

   

  7.3           Survival. Notwithstanding anything in this Agreement to the contrary, (a) the
    provisions of Section 4 shall survive the termination of this Agreement and (b) no termination of this Agreement, whether pursuant to Section 7.2 or otherwise, shall affect the Company’s duty to pay any fees accrued, or reimburse any cost or expense
    incurred, pursuant to the terms of this Agreement prior to the effective date of such termination.

   

  ARTICLE 8

  MISCELLANEOUS

   

  8.1           Company Agreement. Manager acknowledges and
    confirms that it is a party to the Company Agreement and is subject to the provisions set forth therein. In the event of a conflict, the provisions of the Company Agreement shall control.

   

  8.2           Further Assurances. Each Party agrees to execute and deliver such documents and take such actions
    as the other shall reasonably request for the purposes of carrying out the intent of this Agreement and the transactions contemplated hereby.

   

  8.3           Notices. All notices, requests, consents, claims, demands, waivers and other
    communications hereunder shall be in writing and shall be deemed to have been given: (a) when delivered by hand (with written confirmation of receipt); (b) when received by the addressee if sent by an internationally recognized overnight courier; (c)
    on the date sent by facsimile or electronic mail transmission of a PDF document (with confirmation of transmission in the case of facsimile) if sent during normal business hours of the recipient, and on the next business day if sent after normal
    business hours of the recipient; or (d) on the third day after the date mailed, by registered mail, return receipt requested, postage prepaid. Such communications must be sent to the respective Parties at the following addresses (or at such other
    address for a Party as shall be specified in a notice given in accordance with this Section 8.3):

    

  
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  	If to Manager:	6900 N. Dallas Parkway
	 	Suite 500
	Plano, Texas 75024
	Attention: A. Haag Sherman
	Facsimile: 972-663-3799
	Email: hsherman@shermanlp.com
	 	 
	If to the Company:	6900 N. Dallas Parkway
	 	Suite 500
	Plano, Texas 75024
	Attention: A. Haag Sherman
	Facsimile: 972-663-3799
	Email: hsherman@shermanlp.com
	 	 
	If to Sherman:	Mr. A. Haag Sherman
	 	2520 Pelham Drive
	Houston, Texas 77019
	Email: hsherman@shermanlp.com

   

  8.4           Headings. The headings in this Agreement are inserted for convenience or reference
    only, are in no way intended to describe, interpret, define, or limit the scope, extent or intent of this Agreement or any provision of this Agreement and shall not affect the interpretation of this Agreement.

   

  8.5           Entire Agreement. This Agreement and the Company Agreement contain the entire
    agreement between the Parties with respect to its subject matter and supersede any and all prior or contemporaneous written or oral agreements, representations or warranties between them respecting the subject matter hereof.

   

  8.6           Severability. If any term or provision of this Agreement is invalid, illegal or
    unenforceable in any jurisdiction, such invalidity, illegality or unenforceability shall not affect any other term or provision of this Agreement or invalidate or render unenforceable such term or provision in any other jurisdiction. Upon such
    determination that any term or other provision is invalid, illegal or unenforceable, the Parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the Parties as closely as possible in a mutually
    acceptable manner in order that the transactions contemplated hereby be consummated as originally contemplated to the greatest extent possible.

   

  8.7           No Third-Party Beneficiaries. This Agreement is for the sole benefit of the Parties
    hereto and their respective successors and permitted assigns and, except as provided in Section 1.1 and Section 6.2, nothing herein, express or implied, is intended to or shall confer upon any other person any legal or equitable right, benefit or
    remedy of any nature whatsoever, under or by reason of this Agreement.

   

  8.8           Amendments. No amendment or modification of this Agreement shall be valid or binding
    upon any Party hereto unless made in writing and signed by its duly authorized officer; provided, however, the Parties may not amend or terminate this Agreement without the prior written consent of Sherman.

   

  
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  8.9           Assignment; Successors and Assigns. Neither this Agreement, nor any rights or obligations
    hereunder, shall be assignable by either Party hereto unless approved in writing by the other Party and Sherman. Manager retains the right to subcontract for performance of any portion of its duties hereunder by one or more third parties, provided that
    Manager shall not be released from its liabilities and obligations hereunder without the express written consent of Sherman. In connection with the transactions contemplated by this Agreement, III:I Financial Research Management, L.P. (“FMR”)
    shall be converted from a Texas limited partnership to the Company. The Parties hereto agree that this Agreement shall be binding on FMR and any successor thereto, including the Company.

   

  8.10         Attorneys’ Fees. In any litigation arising out of this Agreement, the prevailing Party
    shall be entitled to recover from the other Party all costs and expenses, including, without limitation, attorneys’ fees, paid or incurred by such Party in connection with such litigation.

   

  8.11          Governing Law. All issues and questions concerning the application, construction,
    validity, interpretation and enforcement of this Agreement shall be governed by and construed in accordance with the internal laws of the State of Texas, without giving effect to any choice or conflict of law provision or rule (whether of the State of
    Texas or any other jurisdiction) that would cause the application of laws of any jurisdiction other than those of the State of Texas.

   

  8.12         Arbitration. Any dispute, controversy or claim arising under or relating to this
    Agreement or any breach or threatened breach hereof (an “Arbitrable Dispute”) shall be resolved exclusively by final and binding arbitration in the State of Texas administered by the American Arbitration Association pursuant to its Commercial
    Arbitration Rules. Any demand for arbitration shall be in writing, shall be served on the other Party in the manner prescribed herein for the giving of notices, and shall set forth a short statement of the factual basis for the claim, specifying the
    matter or matters to be arbitrated. The Arbitrable Dispute shall be heard by a three arbitrator panel. In a three member panel arbitration, each of the two Parties to the Arbitrable Dispute shall select one independent arbitrator expert in the subject
    matter of the Arbitrable Dispute from that Party’s list of three independent arbitrators after the other Party (or representative, if applicable) has had the opportunity to designate as objectionable and eliminate one arbitrator from the other’s list
    within seven days after submission thereof. The two arbitrators so selected by the Parties shall select a third independent arbitrator expert in the matter of the Arbitrable Dispute. Any arbitration pursuant hereto shall be conducted by the arbitrators
    under the guidance of the Federal Rules of Civil Procedure and the Federal Rules of Evidence, but the arbitrators shall not be required to comply strictly with such Rules in conducting any such arbitration. All such arbitration proceedings shall take
    place in the State of Texas. The fees and expenses of the arbitrators and any related costs and expenses initially shall be borne equally by the two sides to the Arbitrable Dispute. The arbitrators shall have the authority to award any remedy or relief
    that a state district court of the State of Texas could order or grant, including, without limitation, specific performance of any obligation created under this Agreement, the awarding of punitive damages, the issuance of an injunction, or the
    imposition of sanctions for abuse or frustration of the arbitration process. The arbitrators shall render their decision and award in writing and counterpart copies thereof shall be delivered to each Party. The decision and award of the arbitrators
    shall be binding on all Parties. In rendering such decision and award, the arbitrators shall not add to, subtract from or otherwise modify the provisions of this Agreement. Any Party to the arbitration may seek to have judgment upon the award rendered
    by the arbitrators entered in any court having jurisdiction thereof. Each Party agrees that it will not file any suit, motion, petition or otherwise commence any legal action or proceeding for any matter which is required to be submitted to arbitration
    as contemplated herein except in connection with the enforcement of an award rendered by the arbitrators. Upon the entry of an order dismissing or staying any action or proceeding filed contrary to the preceding sentence, the Party which filed such
    action or proceeding shall promptly pay to the other Party the reasonable attorney’s fees, costs and expenses incurred by such other Party prior to the entry of such order.

   

  
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  8.13          Counterparts. This Agreement may be executed in counterparts, each of which shall be
    deemed an original, but all of which together shall be deemed to be one and the same agreement. A signed copy of this Agreement delivered by facsimile or electronic mail transmission shall be deemed to have the same legal effect as delivery of an
    original signed copy of this Agreement.

   

  8.14         No Strict Construction. The Parties to this Agreement have participated jointly in the
    negotiation and drafting of this Agreement. In the event an ambiguity or question of intent or interpretation arises, this Agreement will be construed as if drafted jointly by the Parties, and no presumption or burden of proof will arise favoring or
    disfavoring any Party by virtue of the authorship of any of the provisions of this Agreement.

   

  [Remainder of Page Intentionally Left Blank.]

    

  
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  IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be executed as of the Effective Date by their respective officers
    thereunto duly authorized.

   

  	 	MANAGER:	 
	 	 	 
	 	TECTONIC SERVICES, LLC	 
	 	 	 
	 	By:	/s/ A. Haag Sherman	 
	 	Name:	A. Haag Sherman	 
	 	Title:	Chief Executive Officer	 
	 	 	 
	 	COMPANY:	 
	 	 	 
	 	TECTONIC ADVISORS, LLC	 
	 	 	 
	 	By:	Tectonic Services, LLC, its manager	 
	 	 	 	 
	 	 	By:	/s/ A. Haag Sherman	 
	 	 	Name:	A. Haag Sherman	 
	 	 	Title:	Chief Executive Officer	 

   

  Signature Page to

  

  Management Services AgreementExhibit

      10.13

    

  

  
  
    IT IS EXPRESSLY UNDERSTOOD AND AGREED THAT THIS NOTE MAY REQUIRE A “BALLOON” PAYMENT OF ALL UNPAID
      PRINCIPAL AND ACCRUED BUT UNPAID INTEREST ON THE MATURITY DATE. THE UNPAID PRINCIPAL INDEBTEDNESS EVIDENCED BY THIS NOTE IS PAYABLE IN FULL AT MATURITY. MAKER MUST REPAY THE ENTIRE UNPAID PRINCIPAL BALANCE OF THIS NOTE AND ACCRUED BUT UNPAID INTEREST
      THEN DUE. PAYEE IS UNDER NO OBLIGATION TO REFINANCE THIS NOTE AT THAT TIME.

    
       

      TIB THE INDEPENDENT BANKERSBANK, N.A.
      

      

      

      AMENDED & RESTATED PROMISSORY NOTE

    

    (Loan No. 92993)

    This Note is in correction and substitution of that certain Promissory Note from
      Maker to Payee of even date herewith, and is being executed to correct the initial Rate of interest therein

    
       

      
        	$12,000,000.00	
                 Effective as of May 11, 2017

              

                  

        

    

    FOR VALUE RECEIVED, the undersigned, TECTONIC
        MERGER SUB, INC. (“TMS”), a Texas corporation, and T BANCSHARES, INC. (“T Bancshares”), a Texas corporation (TMS and T Bancshares are herein together, the “Maker”), jointly and severally promise to pay to the order of TIB THE INDEPENDENT BANKERSBANK, N.A. (“Payee”) the principal sum of Twelve Million and No/100 Dollars ($12,000,000.00), or so much thereof as shall be advanced hereunder at or before the maturity of this Note, with interest on the unpaid balance outstanding from time
      to time at the rate or rates specified below, both principal and interest payable as provided below in lawful money of the United States of America at the address of Payee set forth below or at such other place as from time to time may be designated
      by the holder of this Note.

    
       

      /. Interest Rates and Payments

    

    
       

      Prior to default or maturity, the unpaid principal of this Note from time to time
        outstanding shall bear interest at the rate (“Rate”) of interest per annum equal to the rate reported in the Credit Markets
        section (or similar section) of The Wall Street Journal as the U.S. “Prime Rate”, adjusting daily, plus three
        quarter percent (0.75%) (the sum being the “Floating Rate”); provided that in no event shall the Floating Rate exceed the maximum interest rate permitted under
        applicable law (“Maximum Rate”). If applicable law provides for a ceiling, that ceiling shall be the indicated rate ceiling.
        All interest accruing under this Note shall be calculated on the basis of a 360-day year applied to the actual number of days elapsed.

    

    
       

      Initially, quarterly payments of interest on the unpaid principal balance of this Note shall be due and payable on
        August 11, 2017 and continuing on the same date of each calendar quarter thereafter through and including May 11, 2018 (“Conversion Date”).
        Thereafter, quarterly payments of principal in an amount necessary to amortize the then outstanding principal amount over an eighty-four (84) month period, plus interest,

        shall be due and payable commencing August 11, 2018 and continuing on the same quarterly date thereafter through and including May 11, 2020 (“Maturity Date”), on which date all unpaid principal of and accrued interest on this Note shall be due and payable, which will be a balloon payment. Any payment received later than ten (10) days from the due date
        thereof must be accompanied by a late fee payment in the amount of five percent (5%) of the amount of such payment. Any partial prepayments of principal shall be applied to installments thereof in the inverse order of maturity. Advances hereunder
        shall be made in accordance with the Loan Agreement (defined below), up to the maximum amount of this Note, but in no event shall any advances be made after the Conversion Date. Amounts borrowed and repaid may not be reborrowed.

      

      

      AMENDED AND RESTATED PROMISSORY NOTE – #92993 - Page 1

      
        
          
 

      

    

    All principal and interest which is matured or otherwise
      past due under this Note shall bear interest at the Maximum Rate, or, if no such rate is designated under applicable law, at the rate of eighteen percent (18%) per annum.

    
      

      

      //. Security

    

    
       

      This Note is secured by, Inter alia, a Pledge Agreement (the “Pledge Agreement”) of even date herewith from T Bancshares to Payee, to which Pledge Agreement reference is made for a description of the property covered thereby and the
        nature and extent of the rights and powers of the holder of this Note in respect of such property.

    

    
       

      III. Right to Accelerate Upon Default

    

    
       

      The holder of this Note shall have the option of declaring the principal balance hereof and
        the interest accrued hereon to be immediately due and payable upon the occurrence of an Event of Default under the Loan Agreement (“Loan Agreement”) dated of even date herewith between Maker and Payee (this Note, the Pledge Agreement, the Loan Agreement, and any such other documents are called the “Loan Documents” below), and
        the continuance of such default for a relevant grace or notice period provided therein, if any.

    

    
       

      IV. Waiver of Conditions and Defenses to Liability

    

    
       

      Maker and any other party who is or becomes liable to pay all or any part of this Note, or who
        grants any lien or security interest to secure all or any part of this Note (each called an “other liable party” below), including but not limited to any drawer, acceptor, endorser, guarantor, surety or
        accommodation party, severally waive presentment for payment, demand, notice of demand and of dishonor and nonpayment of this Note, notice of intention to accelerate the maturity of this Note, protest and notice of protest, diligence in collecting,
        and the bringing of suit against any other party.

    

    
       

      Further, Maker and any other liable party severally waive any notice of or defense based upon
        any agreement or consent of the holder of this Note made or given from time to time, before or after maturity, to any of the following: the acceleration, renewal or extension of this Note; a change in the time or manner of payments required by this
        Note; a change in the rates of interest specified in this Note; acceptance or surrender of security; a substitution of security or subordination, amendment or release of security; an addition or release of any other liable party; changes of any
        sort whatever in the terms of payment of this Note or in the manner of doing business with Maker; and any settlement or compromise with Maker or any other liable party on such terms as the holder of this Note may deem appropriate in its sole and
        absolute discretion.

    

    
       

      The holder of this Note may apply all moneys received from Maker or others, or from any security (whether held under
        a security instrument or not), in such manner upon the indebtedness evidenced or secured by any Loan Documents (whether then due or not) as such holder may determine to be in its best interest, without in any way being required to marshal assets or
        to apply all or any part of such moneys upon any particular part of such indebtedness. The holder of this Note is not required to retain, hold, protect, exercise due care with respect to, perfect security interests in or otherwise assure or
        safeguard any security for this Note, and no failure by the holder of this Note to do any of the foregoing and no exercise or failure to exercise by such holder of any other right or remedy shall in any way affect any of Maker’s or any other liable
        party’s obligations hereunder or under other Loan Documents or affect any security or give Maker or any other liable party any recourse against the holder of this Note.

      

      

      AMENDED AND RESTATED PROMISSORY NOTE – #92993 - Page 2

      

    

    
      
        
          
 

      

      V. Usury Savings Provision

    

    
       

      It is the intent of Maker and Payee in the execution of this Note and all other Loan Documents to contract in strict compliance with
        applicable usury law. In furtherance thereof, Maker and Payee stipulate and agree that none of the terms and provisions contained in this Note, or in any other instrument executed in connection herewith, shall ever be construed to create a contract
        to pay for the use, forbearance or detention of money, interest at a rate in excess of the Maximum Rate. Neither Maker nor any guarantors, endorsers or other parties now or hereafter becoming liable for payment of this Note shall ever be obligated
        or required to pay interest on this Note at a rate in excess of the Maximum Rate, and the provisions of this paragraph shall control over all other provisions of this Note and any other Loan Documents now or hereafter executed which may be in
        apparent conflict herewith. Payee expressly disavows any intention to charge or collect excessive unearned interest or finance charges in the event the maturity of this Note is accelerated. If the maturity of this Note shall be accelerated for any
        reason or if the principal of this Note is paid prior to the end of the term of this Note, and as a result thereof the interest received for the actual period of existence of the loan evidenced by this Note exceeds the applicable maximum lawful
        rate, the holder of this Note shall credit the amount of such excess against the principal balance of this Note then outstanding and thereby shall render inapplicable any and all penalties of any kind provided by applicable law as a result of such
        excess interest; provided, however, that if the principal hereof has been paid in full, such excess shall be refunded to Maker. If the holder of this Note shall receive money (or anything else) which is determined to constitute interest and which
        would increase the effective interest rate on this Note or the other indebtedness secured by the Loan Documents to a rate in excess of that permitted by applicable law, the amount determined to constitute interest in excess of the lawful rate shall
        be credited against the principal balance of this Note then outstanding or, if the principal balance has been paid in full, refunded to Maker, in which event any and all penalties of any kind under applicable law as a result of such excess interest
        shall be inapplicable. If the holder of this Note shall not actually receive, but shall contract for, request or demand, a payment of money (or anything else) which is determined to constitute interest and which would increase the effective
        interest rate contracted for or charged on this Note or the other indebtedness evidenced or secured by the Loan Documents to a rate in excess of that permitted by applicable law, the holder of this Note shall be entitled, following such
        determination, to waive or rescind the contractual claim, request or demand for the amount determined to constitute interest in excess of the lawful rate, in which event any and all penalties of any kind under applicable law as a result of such
        excess interest shall be inapplicable. By execution of this Note Maker acknowledges that Maker believes the loan evidenced by this Note to be non-usurious and agrees that if, at any time, Maker should have reason to believe that such loan is in
        fact usurious, Maker will give the holder of this Note notice of such condition and Maker agrees that the holder shall have sixty (60) days in which to make appropriate refund or other adjustment in order to correct such condition if in fact such
        exists. Additionally, if, from any circumstance whatsoever, fulfillment of any provision hereof or any other Loan Documents shall, at the time fulfillment of such provision be due, involve transcending the Maximum Rate then, ipso facto, the obligation to be fulfilled shall be reduced to the Maximum Rate. The term “applicable law” as used in this Note shall mean the laws of the State of Texas
        or the laws of the United States, whichever laws allow the greater rate of interest, as such laws now exist or may be changed or amended or come into effect in the future.

    

    
       

      VI. Miscellaneous

    

    
       

      Should the indebtedness represented by this Note or any part thereof be collected at law or in equity or through any
        bankruptcy, receivership, probate or other court proceedings or if this Note is placed in the hands of attorneys for collection after default, Maker and all endorsers, guarantors and sureties of this Note jointly and severally agree to pay to the
        holder of this Note in addition to the principal and interest due and payable hereon all the costs and expenses of the holder in enforcing this Note including, without limitation, reasonable attorneys’ fees and legal expenses.

    

    
       

      This Note and the rights, duties and liabilities of the parties hereunder or arising from or
        relating in any way to the indebtedness evidenced by this Note or the transaction of which such indebtedness is a part shall be governed by and construed in accordance with the law of the State of Texas and the law of the United States applicable
        to transactions within such State.

    

    
       

      No amendment of this Note shall be binding unless expressed in a writing executed by Maker
        and the holder of this Note.

    

    
       

      Maker certifies, represents, and warrants to Payee that the proceeds hereof
        are to be used for a commercial purpose and not for personal, family, household, or agricultural purposes.

    

    
       

      THE PARTIES HERETO VOLUNTARILY AND KNOWINGLY WAIVE ANY AND ALL RIGHTS TO A TRIAL BY JURY IN ANY
        ACTION, PROCEEDING OR COUNTERCLAIM BROUGHT BY EITHER PARTY ON ANY MATTER WHATSOEVER ARISING OUT OF, IN CONNECTION WITH, OR RELATED TO ANY OF THE LOAN DOCUMENTS.

      

      

      AMENDED AND RESTATED PROMISSORY NOTE – #92993 - Page 3

      

    

    
      
        
          
 

      

      THIS NOTE AND ALL OTHER DOCUMENTS AND INSTRUMENTS EXECUTED PURSUANT HERETO OR IN CONNECTION HEREWITH AND THE TRANSACTIONS CONTEMPLATED
        HEREBY ARE MADE AND PERFORMABLE IN DALLAS COUNTY, TEXAS AND SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS AND THE APPLICABLE LAWS OF THE UNITED STATES OF AMERICA. MAKER IRREVOCABLY SUBMITS TO THE NON-EXCLUSIVE
        JURISDICTION OF ANY TEXAS OR FEDERAL COURT SITTING IN DALLAS COUNTY, TEXAS OVER ANY SUIT, ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO ANY OF THE LOAN DOCUMENTS, AND MAKER HEREBY AGREES AND CONSENTS THAT, IN ADDITION TO ANY METHODS OF SERVICE
        OF PROCESS PROVIDED FOR UNDER APPLICABLE LAW, ALL SERVICE OF PROCESS IN ANY SUCH SUIT, ACTION OR PROCEEDING IN ANY TEXAS OR FEDERAL COURT SITTING IN DALLAS COUNTY, TEXAS (OR SUCH OTHER COUNTY IN TEXAS) MAY BE MADE BY CERTIFIED OR REGISTERED MAIL,
        RETURN RECEIPT REQUESTED, DIRECTED TO MAKER AT THE ADDRESS INDICATED BELOW, AND SERVICE SO MADE SHALL BE COMPLETE FIVE DAYS AFTER THE SAME SHALL HAVE BEEN SO MAILED.

    

    

    

    	 	
            MAKER:

          
	
            Maker’s Address:

          	 
	
            6900 Dallas Parkway, Suite 500

          	
            TECTONIC MERGER SUB, INC.,

          
	
            Plano, TX 75024

          	
            a Texas corporation

          

    

    

    	 	
            By:

          	/s/ A. Haag Sherman

          
	 	 	
            A. Haag Sherman, Director

          

    

    

    	
            16200 Dallas Parkway, Suite 190

          	
            T BANCSHARES, INC.,

          
	
            Dallas, TX 75248

          	
            a Texas corporation

          

    

    

    	 	
            By:

          	/s/ Patrick Howard

          
	 	 	
            Patrick Howard, President and CEO

          

    
      

      

      Payee’s Address:

    

    
      TIB THE INDEPENDENT BANKERSBANK, N.A. 

      P. O. Box 560528

      Dallas, TX 75356-0528

      

      

      AMENDED AND RESTATED PROMISSORY NOTE – #92993 - Page 4

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