Document:

Form of Investment Management Trust Agreement Between Continental Stock Transfer

 Exhibit 10.5 
 INVESTMENT MANAGEMENT TRUST AGREEMENT 
 This Investment Management Trust Agreement (the
“Agreement”) is made as of                     , 2006 by and between Builder Acquisition Corp. (the “Company”) and
Continental Stock Transfer & Trust Company (the “Trustee”). 
 WHEREAS, the Company’s Registration Statement on Form
S-1, No. 333-134909 (the “Registration Statement”), for its initial public offering of securities (the “IPO”) has been declared effective as of the date hereof by the Securities and Exchange Commission (the “Effective
Date”); and 
 WHEREAS, JMP Securities LLC (the “Underwriter”) is acting as the representative of the underwriters in the IPO;
and 
 WHEREAS, as described in the Company’s Registration Statement, and (i) in accordance with the Company’s Certificate of
Incorporation, $92,900,000 of the net proceeds of the IPO ($107,150,000 if the Underwriters’ over-allotment option is exercised in full), and (ii) in accordance with the Underwriting Agreement, dated as of
                    , 2006, between the Company and the JMP Securities LLC (“JMP Securities”), as representative of the
underwriters, an additional $2,000,000 ($2,300,000 if the underwriters over-allotment option is exercised in full), representing a portion of the underwriters’ discount (the “Contingent Discount”) which the JMP Securities LLC, on
behalf of the underwriters, has agreed to deposit in the Trust Account (as defined below), will be delivered to the Trustee to be deposited and held in a trust account for the benefit of the Company and the holders of the Company’s common
stock, par value $0.0001 per share, of the Company (“Common Stock”) included in the units of the Company’s securities issued in the IPO (the amount to be delivered to the Trustee will be referred to herein as the “Property,”
the stockholders for whose benefit the Trustee shall hold the Property will be referred to as the “Public Stockholders,” and the Public Stockholders, JMP Securities and the Company will be referred to together as the
“Beneficiaries”); and in the event the securities offered in the IPO are registered in Colorado, pursuant to Section 11-51-302(6) of the Colorado Revised Statutes (the “CRS”). A copy of Section 11-51-302(6) of the CRS
is attached hereto and made a part hereof; and 
 WHEREAS, the Company and the Trustee desire to enter into this Agreement to set forth the
terms and conditions pursuant to which the Trustee shall hold the Property. 
 NOW, THEREFORE, in consideration of the foregoing and the
mutual covenants and agreements herein contained, the parties hereto agree as follows: 
 1. Agreements and Covenants of
Trustee. The Trustee hereby agrees and covenants to: 
 (a) hold the Property in trust for the Beneficiaries in accordance with the terms
of this Agreement, including without limitation the terms of Section 11-51-302(6) of the CRS, in a segregated trust account (“Trust Account”) established by the Trustee at a branch of JPMorgan Chase NY Bank selected by the Trustee;

 (b) manage, supervise and administer the Trust Account subject to the terms and conditions set forth herein; 

 (c) in a timely manner, upon the instruction of the Company, to invest and reinvest the Property in
“government securities” within the meaning of Section 2(a)(16) of the Investment Company Act of 1940 having a maturity of 180 days or less or in any open ended investment company registered under the Investment Company Act of 1940
that holds itself out as a money market fund meeting the conditions of paragraphs (c)(2), (c)(3) and (c)(4) under Rule 2a-7 promulgated under the Investment Company Act of 1940; 
 (d) collect and receive, when due, all principal and income arising from the Property, which shall become part of the “Property,” as such term
is used herein; 
 (e) notify the Company and JMP Securities of all communications received by it with respect to any Property requiring
action by the Company; 
 (f) supply any necessary information or documents as may be requested by the Company in connection with the
Company’s preparation of the tax returns for the Trust Account; 
 (g) participate in any plan or proceeding for protecting or enforcing
any right or interest arising from the Property if, as and when instructed by the Company and/or JMP Securities to do so; 
 (h) render to
the Company and to JMP Securities, and to such other person as the Company may instruct, monthly written statements of the activities of and amounts in the Trust Account reflecting all receipts and disbursements of the Trust Account; 
 (i) as of the date of the consummation of the acquisition by the Company, through merger, capital stock exchange, asset acquisition, stock purchase or
other similar business combination with, one or more operating businesses in the homebuilding industry as more fully described in the prospectus forming a part of the Registration Statement (a “Business Combination”), commence liquidation
of the Trust Account upon receipt of the Officers’ Certificate signed by the Chief Executive Officer and Chief Financial Officer in accordance with the terms of a letter (the “Termination Letter”), in a form substantially similar to
that attached hereto as Exhibit A or Exhibit B, signed on behalf of the Company by its Chief Executive Officer and Chief Financial Officer, and complete the liquidation of the Trust Account and distribute the Property in the Trust
Account only as directed in the Termination Letter and the other documents referred to therein. The Trustee understands and agrees that disbursements from the Trust Account shall be made only pursuant to a duly executed Termination Letter, together
with the other documents referenced herein, including, without limitation, an independently certified oath and report of inspector of election in respect of the shareholder vote in favor of the Business Combination. In all cases, the Trustee shall
provide JMP Securities with a copy of any Termination Letters, Officers’ Certificates and/or any other correspondence that it receives with respect to any proposed withdrawal from the Trust Account promptly after it receives same; and

 (j) as of the date 18 months from the date of this Agreement (the “LOI Termination Date”) (or 24 months from the date hereof in
the event the Company has executed a Letter of Intent (defined below) prior to the LOI Termination Date but failed to consummate a Business Combination (“Second Termination Date”), commence liquidation of the Trust Account. The Trustee,
upon consultation with the Company and JMP Securities, shall deliver a notice to Public Stockholders of record as of the LOI Termination Date or Second Termination Date, whichever the case may be, by U.S. mail or via the Depository Trust Company
(“DTC”), within five days of the LOI Termination Date or Second 

  

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Termination Date, to notify the Public Stockholders of such event and take such other actions as it may deem necessary to inform the Beneficiaries. The
Trustee shall deliver to each Public Stockholder its ratable share of the Property against satisfactory evidence of delivery of the stock certificates by the Public Stockholders to the Company through DTC, its Deposit Withdraw Agent Commission
(DWAC) system or as otherwise presented to the Trustee. Notwithstanding the foregoing, if the Trustee receives a bona fide, executed letter of intent, agreement in principle or engagement letter (a “Letter of Intent”) for a Business
Combination prior to the LOI Termination Date accompanied by an Officers’ Certificate as described in Section 3(e) hereof, then the Trustee shall forego or suspend any liquidation of the Trust Account until the earlier of a Business
Combination or the Second Termination Date. 
 2. Limited Distributions of Income on Property. 
 (a) Upon receipt by the Trustee of an Officer’s Certificate signed by the Chief Executive Officer and Chief Financial Officer of the Company
certifying as true, accurate and complete a copy of any tax return required to be filed on behalf of the Trust Account in respect of income earned on the Property held therein, the Trustee shall deliver to the Company for submission to the
appropriate taxing authority a check made payable to the order of such taxing authority in the amount required to pay such taxes; provided, however, that in no event shall the aggregate amount of all checks issued to taxing authorities
pursuant to this Section 2(a) exceed the income in respect of which such taxes are due and owing. 
 (b) Except as provided in Sections
2(a) above, no other distributions from the Trust Account shall be permitted except in accordance with Sections 1(i) and 1(j) hereof. 
 3. Agreements and Covenants of the Company. The Company hereby agrees and covenants to: 
 (a) Provide
all instructions to the Trustee hereunder in writing, signed by the Company’s Chief Executive Officer and/or Chief Financial Officer. In addition, except with respect to its duties under paragraph 1(i) and 1(j) above, the Trustee shall be
entitled to rely on, and shall be protected in relying on, any verbal or telephonic advice or instruction which it in good faith believes to be given by any one of the persons authorized above to give written instructions, provided that the Company
and/or JMP Securities shall promptly confirm such instructions in writing; and 
 (b) Hold the Trustee harmless and indemnify the Trustee
from and against any and all expenses, including reasonable counsel fees and disbursements, or loss suffered by the Trustee in connection with any action, suit or other proceeding brought against the Trustee involving any claim, or in connection
with any claim or demand which in any way arises out of or relates to this Agreement, the services of the Trustee hereunder, or the Property or any income earned from investment of the Property, except for expenses and losses resulting from the
Trustee’s gross negligence or willful misconduct. Promptly after the receipt by the Trustee of notice of demand or claim or the commencement of any action, suit or proceeding, pursuant to which the Trustee intends to seek indemnification under
this paragraph, it shall notify the Company in writing of such claim (hereinafter referred to as the “Indemnified Claim”). The Trustee shall have the right to conduct and manage the defense against such Indemnified Claim, provided, that
the Trustee shall obtain the consent of the Company with respect to the selection of counsel, which consent shall not be unreasonably withheld. The Company may participate in such action with its own counsel; and 
  

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 (c) Pay the Trustee an initial acceptance fee of $1,000 and an annual fee of $3,000 (it being expressly
understood that the Property shall not be used to pay such fee). The Company shall pay the Trustee the initial acceptance fee and first year’s fee at the consummation of the IPO and thereafter on the anniversary of the Effective Date. The
Trustee shall refund to the Company the fee (on a pro rata basis) with respect to any period after the liquidation of the Trust Fund. The Company shall not be responsible for any other fees or charges of the Trustee except as may be provided in
Section 2(b) hereof (it being expressly understood that the Property shall not be used to make any payments to the Trustee under such section); and 
 (d) In the event that the Company consummates a Business Combination and the Trust Account is liquidated in accordance with Section 1(i) hereof, the Trustee or another independent party designated by JMP
Securities shall act as the inspector of election to certify the results of the shareholder vote; and 
 (e) The Officers’ Certificate
referenced in Sections 1(i) and (j) hereof shall require the Chief Executive Officer and Chief Financial Officer of the Company to each certify the following (wherever applicable): (1) prior to the LOI Termination Date, the Company has
entered into a bona fide Letter of Intent with a target business; and/or (2) prior to the LOI Termination Date, the Company has entered into a Business Combination with a target business, the terms of which are consistent with the requirements
set forth in the Registration Statement; and/or (3) prior to the Second Termination Date, the Company has entered into a Business Combination with a target business, the terms of which are consistent with the requirements set forth in the
Registration Statement; and (4) the Board of Directors (the “Board”) pursuant to the unanimous written consent of the Board has approved (where applicable): (i) the Business Combination; and/or (ii) Letter of Intent. A copy
of such consent shall be attached as an exhibit to the Officers’ Certificate; 
 (f) Within five business days after the
underwriters’ over-allotment option (or any unexercised portion thereof) expires or is exercised in full, provide the Trustee notice in writing with a copy to the underwriters of the total amount of the Contingent Discount, which shall in no
event be less than $2,000,000. 
 4. Limitations of Liability. The Trustee shall have no responsibility or liability
to: 
 (a) Take any action with respect to the Property, other than as directed in Section 1 hereof and the Trustee shall have no
liability to any party except for liability arising out of its own gross negligence or willful misconduct; 
 (b) Institute any proceeding
for the collection of any principal and income arising from, or institute, appear in or defend any proceeding of any kind with respect to, any of the Property unless and until it shall have received written instructions from the Company given as
provided herein to do so and the Company shall have advanced or guaranteed to it funds sufficient to pay any expenses incident thereto; 
 (c) Change the investment of any Property, other than in compliance with Section 1(c); 
 (d) Refund any depreciation in
principal of any Property; 
  

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 (e) Assume that the authority of any person designated by the Company and/or JMP Securities to give
written instructions hereunder shall not be continuing unless provided otherwise in such designation, or unless the Company and/or JMP Securities shall have delivered a written revocation of such authority to the Trustee; 
 (f) The other parties hereto or to anyone else for any action taken or omitted by it, or any action suffered by it to be taken or omitted, in good faith
and in the exercise of its own best judgment, except for its gross negligence or willful misconduct. The Trustee may rely conclusively and shall be protected in acting upon any order, notice, demand, certificate, opinion or advice of counsel
(including counsel chosen by the Trustee), statement, instrument, report or other paper or document (not only as to its due execution and the validity and effectiveness of its provisions, but also as to the truth and acceptability of any information
therein contained) which is believed by the Trustee, in good faith, to be genuine and to be signed or presented by the proper person or persons. The Trustee shall not be bound by any notice or demand, or any waiver, modification, termination or
rescission of this agreement or any of the terms hereof, unless evidenced by a written instrument delivered to the Trustee signed by the proper party or parties and, if the duties or rights of the Trustee are affected, unless it shall give its prior
written consent thereto; 
 (g) Verify the correctness of the information set forth in the Registration Statement or to confirm or assure
that any acquisition made by the Company or any other action taken by it is as contemplated by the Registration Statement, unless an officer of the Trustee has actual knowledge thereof, written notice of such event is sent to the Trustee or as
otherwise required under Section 1(i) hereof; and 
 (h) Pay any taxes on behalf of the Trust Account (it being expressly understood
that the Property shall not be used to pay any such taxes and that such taxes, if any, shall be paid by the Company from funds not held in the Trust Account). 
 5. Certain Rights Of Trustee. 
 (a) Before the Trustee acts or refrains from acting, it may require an Officers’
Certificate or opinion of counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on such Officers’ Certificate or opinion of counsel. The Trustee may consult with counsel and the
advice of such counsel or any opinion of counsel shall be full and complete authorization and protection from liability in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon. 
 (b) The Trustee may act through its attorneys and agents and shall not be responsible for the misconduct or negligence of any agent appointed with due
care. 
 (c) The Trustee shall not be liable for any action it takes or omits to take in good faith that it believes to be authorized or
within the rights or powers conferred upon it by this Agreement. 
 (d) The Trustee shall not be responsible for and makes no representation
as to the validity or adequacy of this Agreement; it shall not be accountable for the Company’s use of the proceeds from the Trust Account. Notwithstanding the effective date of this Agreement or anything to the contrary contained in this
Agreement, the Trustee shall have no liability or responsibility for any act or event relating to this Agreement or the transactions related thereto which occurs prior to the date of this Agreement, and shall have no contractual obligations to the
Beneficiaries until the date of this Agreement. 
  

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 6. Termination. This Agreement shall terminate as follows: 
 (a) If the Trustee gives written notice to the Company that it desires to resign under this Agreement, the Company shall use its reasonable efforts to
locate a successor trustee during which time the Trustee shall continue to act in accordance with the terms of this Agreement. At such time that the Company notifies the Trustee that a successor trustee has been appointed by the Company and has
agreed to become subject to the terms of this Agreement, the Trustee shall transfer the management of the Trust Account to the successor trustee, including, but not limited, to the transfer of copies of the reports and statements relating to the
Trust Account, whereupon this Agreement shall terminate; provided, however, that, in the event that the Company does not locate a successor trustee within ninety days of receipt of the resignation notice from the Trustee, the Trustee may submit an
application to have the Property deposited with the United States District Court for the Southern District of New York and upon such deposit, the Trustee shall be immune from any liability whatsoever that arises due to any actions or omissions to
act by any party after such deposit; 
 (b) At such time that the Trustee has completed the liquidation of the Trust Account in all respects
by with the provisions of Section 1(i) hereof, and distributed the Property in accordance with the provisions of the Termination Letter, this Agreement shall terminate except with respect to Section 2(b) hereof; or 
 (c) On such date after                     
    , 2008 when the Trustee deposits the Property with the United States District Court for the Southern District of New York in the event that, prior to such date, the Trustee has not received a Termination Letter from
the Company pursuant to Section 1(i) or (j) hereof. 
 7. Miscellaneous. 
 (a) The Company and the Trustee each acknowledge that the Trustee will follow the security procedures set forth below with respect to funds transferred
from the Trust Account. Upon receipt of written instructions, the Trustee will confirm such instructions with an Authorized Individual at an Authorized Telephone Number listed on the attached Exhibit C. The Company and the Trustee will each
restrict access to confidential information relating to such security procedures to authorized persons. Each party must notify the other party immediately if it has reason to believe unauthorized persons may have obtained access to such information,
or of any change in its authorized personnel. In executing funds transfers, the Trustee will rely upon account numbers or other identifying numbers of a beneficiary, beneficiary’s bank or intermediary bank, rather than names. The Trustee shall
not be liable for any loss, liability or expense resulting from any error in an account number or other identifying number, provided it has accurately transmitted the numbers provided. 
 (b) This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New York, without giving effect to
conflict of laws. It may be executed in several counterparts, each one of which shall constitute an original, and together shall constitute but one instrument. Facsimile signatures shall constitute original signatures for all purposes of this
Agreement. 
  

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 (c) This Agreement contains the entire agreement and understanding of the parties hereto with respect to
the subject matter hereof. This Agreement or any provision hereof may only be changed, amended or modified by a writing signed by each of the parties hereto; provided, however, that no such change, amendment or modification may be made without the
prior written consent of JMP Securities, who, along with the other underwriters, the parties specifically agree, are and shall be third party beneficiaries for purposes of this Agreement; and provided further, any amendment to Section 1(j)
shall require the consent of all of the Public Stockholders. As to any claim, cross-claim or counterclaim in any way relating to this Agreement, each party waives the right to trial by jury 
 (d) The parties hereto consent to the jurisdiction and venue of any state or federal court located in the State and County of New York for purposes of
resolving any disputes hereunder. The parties hereto irrevocably submit to such jurisdiction, which jurisdiction shall be exclusive, and hereby waive any objection to such exclusive jurisdiction and that such courts represent an inconvenient forum.

 (e) Any notice, consent or request to be given in connection with any of the terms or provisions of this Agreement shall be in writing and
shall be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or by facsimile transmission: 
 if to the Trustee, to: 
 Continental Stock Transfer & Trust Company 
 17 Battery Place 
 New York, New York 10004 
 Attn: Steven G. Nelson 
 Fax No.: (212) 509-5150 
 if to the Company, to: 
 Builder Acquisition Corp. 
 4902 Alameda Boulevard, NE 
 Albuquerque, New Mexico 87113 
 Attn: Michael D. Sivage 
 Fax No.: (505) 998-1818 
 in either case with a copy to: 
 JMP Securities LLC 600 
 Montgomery Street, Suite 100 
 San Francisco, California 94111-2713 
 Attn: W. Phillip Whitcomb 
 Fax No.: (415) 835-8982 
 and 
  

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 Mintz Levin Cohn Ferris Glovsky and Popeo, P.C. 
 666 Third Avenue, 25th Floor 
 New York, New York 10017 
 Attn: Jeffrey P. Schultz, Esq. 
 Fax No.: (212) 983-3115 
 and 
 O’Melveny & Myers LLP 
 Embarcadero Center West 
 275 Battery Street, Suite 2600 
 San Francisco, California 94111 
 Attn: Peter T. Healy, Esq. 
 Fax No.: (415) 984-8701 
 (f) This Agreement may not be assigned by the Trustee without the prior
written consent of the Company and JMP Securities. 
 (g) Each of the Trustee and the Company hereby represents that it has the full right
and power and has been duly authorized to enter into this Agreement and to perform its respective obligations as contemplated hereunder. The Trustee acknowledges and agrees that it shall not make any claims or proceed against the Trust Account,
including by way of set-off, and shall not be entitled to any funds in the Trust Account under any circumstance. 
 (h) The Trustee hereby
consents to the inclusion of Continental Stock Transfer & Trust Company in the Registration Statement and other materials relating to the IPO. 
 remainder of document continued on next page 
  

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

  

			
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Trustee
		
	By:	 	  

	Name:	 	Steven G. Nelson
	Title:	 	Chairman
	
	BUILDER ACQUISITION CORP.
		
	By:	 	  

	Name:	 	Michael D. Sivage
	Title:	 	Chairman and Chief Executive Officer

  

 9 

 EXHIBIT A 
 [Letterhead of Company] 
 [Insert date] 
 Continental Stock Transfer & Trust Company 
 17 Battery Place 

New York, New York 10004 
 Attn: Steven G. Nelson 
 Re: Trust Account No.
[                        ] Termination Letter 
 Ladies and Gentlemen: 
 Pursuant to Section 1(i) of the Investment Management Trust Agreement between
Builder Acquisition Corp. (the “Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of
                    , 2006 (“Trust Agreement”), this is to advise you that the Company has entered into an agreement (the
“Business Agreement”) with                      (the “Target Business”) to consummate a business combination with Target
Business (“Business Combination”) on or about [insert date]. The Company shall notify you at least 48 hours in advance of the actual date of the consummation of the Business Combination (the “Consummation Date”) and shall provide
you with an Officers’ Certificate in accordance with Sections 1(i) and 2(e) of the Trust Agreement. Capitalized terms used herein and not otherwise defined shall have the meaning ascribed to them in the Trust Agreement. 
 In accordance with the terms of the Trust Agreement, we hereby authorize you to commence liquidation of the Trust Account to the effect that, on the
Consummation Date, all of funds held in the Trust Account will be immediately available for transfer to the account or accounts that the Company and JMP Securities shall direct in writing on the Consummation Date. 
 On the Consummation Date (i) counsel for the Company shall deliver to you written notification that (a) all of the conditions to closing of the
Business Combination have been satisfied and the closing date for such Business Combination has been scheduled pursuant to the terms of the Business Agreement, and (b) the provisions of Section 11-51-302(6) and Rule 51-3.4 of the CRS have
been met, to the extent applicable; (ii) the Company shall deliver along with the oath and report of inspector of election certified by an independent inspector which may be the Trustee or as otherwise appointed by JMP Securities (collectively,
the “Report”); and (iii) the Company and JMP Securities shall deliver to you joint written instructions with respect to the transfer of the funds, including the Contingent Discount, held in the Trust Account (the
“Instructions”). You are hereby directed and authorized to transfer the funds held in the Trust Account immediately upon your receipt of the counsel’s letter, the Report, evidence of delivery of the Stock Certificates, the
Officers’ Certificate and the Instructions in accordance with the terms of the Instructions. Notwithstanding the foregoing, upon verification of receipt by you of the Instructions, we hereby agree and acknowledge that the Property in the Trust
Account shall be distributed as follows: (1) first, to JMP Securities LLC by wire transfer (or as otherwise directed by JMP Securities) in immediately available funds, the aggregate amount of
$                 (or $                 as applicable) plus any interest
accrued thereon; and (2) thereafter, to any other Beneficiary in accordance with the terms of the Instructions. In the event that certain deposits held in the Trust Account may not be liquidated by the Consummation Date without penalty, you
will notify the Company and JMP Securities of the same and the Company and, if the amount set forth in clause (1) shall not have been paid in full, JMP Securities shall issue joint written instructions directing you as to whether such funds
should remain in the Trust Account and be distributed after the Consummation Date to the Company and/or JMP Securities. Upon the distribution of all the funds in the Trust Account pursuant to the terms hereof, the Trust Agreement shall be
terminated. 

 In the event that the Business Combination is not consummated on the Consummation Date described in the
notice thereof and we have not notified you on or before the original Consummation Date of a new Consummation Date, then the funds held in the Trust Account shall be reinvested as provided in the Trust Agreement on the business day immediately
following the Consummation Date as set forth in the notice. 
  

			
	Very truly yours,
	
	BUILDER ACQUISITION CORP.
		
	By:	 	  

		 	Michael D. Sivage, Chief Executive Officer
		
	By:	 	  

		 	James M. Pirrello, Chief Financial Officer

 EXHIBIT B 
 [Letterhead of Company] 
 [Insert date] 
 Continental Stock Transfer & Trust Company 
 17 Battery Place 

	New	York, New York 10004 Attn: Steven G. Nelson 

 Re:             Trust Account No. [            ] Termination Letter 
 Ladies and Gentlemen: 
 Pursuant to Section 1(i) of the
Investment Management Trust Agreement between Builder Acquisition Corp. (the “Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of
                    , 2006 (the “Trust Agreement”), this is to advise you that the Board of Directors of the Company has voted to
dissolve the Company and liquidate the Trust Account (as defined in the Trust Agreement). Attached hereto is a copy of the minutes of the meeting of the Board of Directors of the Company relating thereto, certified by the Secretary of the Company as
true and correct and in full force and effect. 
 In accordance with the terms of the Trust Agreement, we hereby (a) certify to you that
the provisions of Section 11-51-302(6) and Rule 51-3.4 of the Colorado Statute have been met and (b) authorize you, to commence liquidation of the Trust Account. You will notify the Company and JMP Securities LLC in writing as to when all
of the funds in the Trust Account will be available for immediate transfer (the “Transfer Date”). Thereafter, you shall commence distribution of such funds in accordance with the terms of the Trust Agreement and the Company’s
Certificate of Incorporation. Upon the payment of all the funds in the Trust Account, the Trust Agreement shall be terminated and the Trust Account closed. 
  

			
	Very truly yours,
	
	BUILDER ACQUISITION CORP.
		
	By:	 	  

		 	Michael D. Sivage, Chief Executive Officer
		
	By:	 	  

		 	James M. Pirrello, Chief Financial Officer

 EXHIBIT C 
  

			
	 AUTHORIZED INDIVIDUAL(S)
 FOR TELEPHONE CALL
BACK
	  	 AUTHORIZED
 TELEPHONE
NUMBER(S)

		
	Company:	  	
		
	 Builder Acquisition Corp. 4902 Alameda Boulevard, NE
 Albuquerque, New Mexico 87113
 Attn: Michael D. Sivage, Chief Executive Officer
	  	(505) 998-1800
		
	Trustee:	  	
		
	 Continental Stock Transfer & Trust Company
 17
Battery Place
 New York, New York 10004
 Attn: Steven G.
Nelson
	  	(212) 509-4000Form of Stock Escrow Agreement

 Exhibit 10.6 
  
 STOCK ESCROW AGREEMENT 
  
 STOCK ESCROW AGREEMENT, dated as of
                    , 2006 (“Agreement”), by and among Builder Acquisition Corp., a Delaware corporation (“Company”),
Michael D. Sivage, Michael A. Feiner, Douglas M. Brown and James M. Pirrello (collectively “Initial Stockholders”) and CONTINENTAL STOCK TRANSFER & TRUST COMPANY, a New York corporation (“Escrow Agent”). 
  
 WHEREAS, the Company has entered into an Underwriting Agreement, dated
                    , 2006 (“Underwriting Agreement”), with JMP Securities (“JMP Securities”) acting as representative of
the several underwriters (collectively, the “Underwriters”), pursuant to which, among other matters, the Underwriters have agreed to purchase 12,500,000 units (“Units”) of the Company. Each Unit consists of one share of the
Company’s Common Stock, par value $.0001 per share, and one Warrant, each Warrant to purchase one share of Common Stock, all as more fully described in the Company’s final Prospectus, dated
                    , 2006 (“Prospectus”) comprising part of the Company’s Registration Statement on Form S-1
(File No. 333-134909) under the Securities Act of 1933, as amended (“Registration Statement”), declared effective on
                    , 2006 (“Effective Date”). 
  
 WHEREAS, the Initial Stockholders have agreed as a condition of the sale of the Units to deposit their shares of Common
Stock of the Company, as set forth opposite their respective names in Exhibit A attached hereto (collectively “Escrow Shares”), in escrow as hereinafter provided. 
  
 WHEREAS, the Company and the Initial Stockholders desire that the Escrow Agent accept the Escrow Shares, in escrow, to be
held and disbursed as hereinafter provided. 
  
 IT IS AGREED:

  
 1. Appointment of Escrow Agent. The Company and
the Initial Stockholders hereby appoint the Escrow Agent to act in accordance with and subject to the terms of this Agreement and the Escrow Agent hereby accepts such appointment and agrees to act in accordance with and subject to such terms.

  
 2. Deposit of Escrow Shares. On or before the
Effective Date, each of the Initial Stockholders shall deliver to the Escrow Agent certificates (with medallion guaranteed stock powers) representing his respective Escrow Shares, to be held and disbursed subject to the terms and conditions of this
Agreement. Each Initial Stockholder acknowledges that the certificate representing his Escrow Shares is legended to reflect the deposit of such Escrow Shares under this Agreement. 
  
 3. Disbursement of the Escrow Shares. The Escrow Agent shall hold the Escrow Shares until the third anniversary
of the Effective Date (“Escrow Period”), on which date it shall, upon written instructions from each Initial Stockholder, disburse each of the Initial Stockholder’s Escrow Shares to such Initial Stockholder; provided, however, that if
the Escrow Agent is notified by the Company pursuant to Section 6.7 hereof that the Company is being liquidated at any time during the Escrow Period, then the Escrow Agent shall promptly destroy the certificates representing the Escrow Shares;
provided further, however, that if, after the Company consummates a Business Combination (as such term is defined in the Registration Statement), the Company (or the surviving entity) subsequently consummates a liquidation, merger, stock exchange or
other similar transaction which results in all of the stockholders of such entity having the right to exchange their shares of Common Stock for cash, securities or other property, then the Escrow Agent will, upon receipt of a certificate, executed
by the Chief Executive Officer or Chief Financial Officer of the Company, in form reasonably acceptable to the Escrow Agent, that such transaction is then being consummated, release the Escrow Shares to the Initial Stockholders upon consummation of
the transaction so that they can similarly participate. The Escrow Agent shall have no further duties hereunder after the disbursement or destruction of the Escrow Shares in accordance with this Section 3. 
  
 4. Rights of Initial Stockholders in Escrow Shares. 
  
 4.1 Voting Rights as a Stockholder. Subject to the terms of the
Insider Letter described in Section 4.4 hereof and except as herein provided, the Initial Stockholders shall retain all of their rights as stockholders of the Company during the Escrow Period, including, without limitation, the right to vote
such Escrow Shares. 

 4.2 Dividends and Other Distributions in Respect of the Escrow Shares. During the Escrow
Period, all dividends payable in cash with respect to the Escrow Shares shall be paid to the Initial Stockholders, but all dividends payable in stock or other non-cash property (“Non-Cash Dividends”) shall be delivered to the Escrow Agent
to hold in accordance with the terms hereof. As used herein, the term “Escrow Shares” shall be deemed to include the Non-Cash Dividends distributed thereon, if any. 
  
 4.3 Restrictions on Transfer. During the Escrow Period, no sale, transfer or other disposition may be made of
any or all of the Escrow Shares except (i) by gift to a member of Initial Stockholder’s immediate family or to a trust, the beneficiary of which is an Initial Stockholder or a member of an Initial Stockholder’s immediate family,
(ii) by virtue of the laws of descent and distribution upon death of any Initial Stockholder, or (iii) pursuant to a qualified domestic relations order; provided, however, that such permissive transfers may be implemented
only upon the respective transferee’s written agreement to be bound by the terms and conditions of this Agreement and of the Insider Letter signed by the Initial Stockholder transferring the Escrow Shares. During the Escrow Period, the
Initial Stockholders shall not pledge or grant a security interest in the Escrow Shares or grant a security interest in their rights under this Agreement. 
  
 4.4 Insider Letters. Each of the Initial Stockholders has executed a letter agreement with JMP Securities and the Company, dated as indicated
on Exhibit A hereto, and which is filed as an exhibit to the Registration Statement (“Insider Letter”), respecting the rights and obligations of such Initial Stockholder in certain events, including but not limited to the
liquidation of the Company. 
  
 5. Concerning the Escrow
Agent. 
  
 5.1 Good Faith Reliance. The Escrow
Agent shall not be liable for any action taken or omitted by it in good faith and in the exercise of its own best judgment, and may rely conclusively and shall be protected in acting upon any order, notice, demand, certificate, opinion or advice of
counsel (including counsel chosen by the Escrow Agent), statement, instrument, report or other paper or document (not only as to its due execution and the validity and effectiveness of its provisions, but also as to the truth and acceptability of
any information therein contained) which is believed by the Escrow Agent to be genuine and to be signed or presented by the proper person or persons. The Escrow Agent shall not be bound by any notice or demand, or any waiver, modification,
termination or rescission of this Agreement unless evidenced by a writing delivered to the Escrow Agent signed by the proper party or parties and, if the duties or rights of the Escrow Agent are affected, unless it shall have given its prior written
consent thereto. 
  
 5.2 Indemnification. The Escrow
Agent shall be indemnified and held harmless by the Company from and against any expenses, including counsel fees and disbursements, or loss suffered by the Escrow Agent in connection with any action, suit or other proceeding involving any claim
which in any way, directly or indirectly, arises out of or relates to this Agreement, the services of the Escrow Agent hereunder, or the Escrow Shares held by it hereunder, other than expenses or losses arising from the gross negligence or willful
misconduct of the Escrow Agent. Promptly after the receipt by the Escrow Agent of notice of any demand or claim or the commencement of any action, suit or proceeding, the Escrow Agent shall notify the other parties hereto in writing. In
the event of the receipt of such notice, the Escrow Agent, in its sole discretion, may commence an action in the nature of interpleader in an appropriate court to determine ownership or disposition of the Escrow Shares or it may deposit the Escrow
Shares with the clerk of any appropriate court or it may retain the Escrow Shares pending receipt of a final, non-appealable order of a court having jurisdiction over all of the parties hereto directing to whom and under what circumstances the
Escrow Shares are to be disbursed and delivered. The provisions of this Section 5.2 shall survive in the event the Escrow Agent resigns or is discharged pursuant to Sections 5.5 or 5.6 below. 
  
 5.3 Compensation. The Escrow Agent shall be entitled to
reasonable compensation from the Company for all services rendered by it hereunder. The Escrow Agent shall also be entitled to reimbursement from the Company for all expenses paid or incurred by it in the administration of its duties hereunder
including, but not limited to, all counsel, advisors’ and agents’ fees and disbursements and all taxes or other governmental charges. 
  
 5.4 Further Assurances. From time to time on and after the date hereof, the Company and the Initial Stockholders shall deliver or cause to be
delivered to the Escrow Agent such further documents and instruments and shall do or cause to be done such further acts as the Escrow Agent shall reasonably request to carry out more 

 
effectively the provisions and purposes of this Agreement, to evidence compliance herewith or to assure itself that it is protected in acting hereunder.

  
 5.5 Resignation. The Escrow Agent may resign at
any time and be discharged from its duties as escrow agent hereunder by its giving the other parties hereto written notice and such resignation shall become effective as hereinafter provided. Such resignation shall become effective at such time
that the Escrow Agent shall turn over to a successor escrow agent appointed by the Company, the Escrow Shares held hereunder. If no new escrow agent is so appointed within the 60 day period following the giving of such notice of resignation,
the Escrow Agent may deposit the Escrow Shares with any court it reasonably deems appropriate. 
  
 5.6 Discharge of Escrow Agent. The Escrow Agent shall resign and be discharged from its duties as escrow agent hereunder if so requested in writing at any time by the Company and a majority of the Initial
Stockholders, jointly, provided, however, that such resignation shall become effective only upon acceptance of appointment by a successor escrow agent as provided in Section 5.5. 
  
 5.7 Liability. Notwithstanding anything herein to the contrary, the Escrow Agent shall not be relieved from
liability hereunder for its own gross negligence or its own willful misconduct. 
  
 6. Miscellaneous. This Agreement shall be governed by and construed and enforced in all respects by the laws of the State of New York, without giving effect to conflict of laws. The Company hereby agrees that
any action, proceeding or claim against it arising out of, or relating in any way to this Stock Escrow Agreement shall be brought and enforced in the courts of the State of New York or of the United States of America for the Southern District of New
York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives any objection to such exclusive jurisdiction and that such courts represent an inconvenient forum. This Agreement may be executed in
several counterparts, each one of which shall constitute an original, and together shall constitute but one instrument. Facsimile signatures shall constitute original signatures for all purposes of this Agreement. 
  
 6.2 Third Party Beneficiaries. Each of the Initial Stockholders
hereby acknowledges that the Underwriters are third party beneficiaries of this Agreement and this Agreement may not be modified or changed without the prior written consent of JMP Securities. 
  
 6.3 Entire Agreement. This Agreement contains the entire
agreement of the parties hereto with respect to the subject matter hereof and, except as expressly provided herein, may not be changed or modified except by an instrument in writing signed by the party to be charged. 
  
 6.4 Headings. The headings contained in this Agreement are for
reference purposes only and shall not affect in any way the meaning or interpretation thereof. 
  
 6.5 Binding Effect. This Agreement shall be binding upon and inure to the benefit of the respective parties hereto and their legal representatives, successors and assigns. 
  
 6.6 Notices. Any notice or other communication required or which
may be given hereunder shall be in writing and either be delivered personally or be mailed, certified or registered mail, or by private national courier service, return receipt requested, postage prepaid, and shall be deemed given when so delivered
personally or, if mailed, two days after the date of mailing, as follows: 
  
 If to the Company, to: 
  
 Builder Acquisition Corp. 
 4902 Alameda Boulevard, NE 
 Albuquerque, NM 87113 
 Attn: Chairman 

 If to a Stockholder, to his address set forth in Exhibit A. 
  
 and if to the Escrow Agent, to: 
  
 Continental Stock Transfer & Trust Company

 17 Battery Place 
 New York, New York 10004 
 Attn: Chairman 
  
 A copy of any notice sent hereunder shall be sent to:

  
 Mintz Levin Cohn Ferris Glovsky and Popeo,
P.C. 
 666 Third Avenue, 25th Floor 
 New York, NY 10017 
 Attn: Jeffrey P. Schultz, Esq. 
  
 and: 
  
 JMP Securities LLC 
 600 Montgomery Street, Suite 1100 
 San Francisco, CA 94111-2713 
 Attn. M. Phillip Whitcomb 
  
 and: 
  
 O’Melveny & Myers LLP 
 Embarcadero Center West 
 275 Battery Street, Suite 2600 
 San Francisco, CA 94111 
 Attn: Peter T. Healy, Esq. 
  
 The parties
may change the persons and addresses to which the notices or other communications are to be sent by giving written notice to any such change in the manner provided herein for giving notice. 
  
 6.7 Liquidation of Company. The Company shall give the Escrow Agent
written notification of the liquidation and dissolution of the Company in the event that the Company fails to consummate a Business combination within the time period(s) specified in the Prospectus. 

 WITNESS the execution of this Agreement as of the date first above written. 
  

			
	BUILDER ACQUISITION CORP.
		
	By:	 	 
	 	 	 Michael D. Sivage,
 Chairman and Chief Executive
Officer

  

	
	INITIAL STOCKHOLDERS:
	
	  
	Michael D. Sivage
	
	  
	Douglas M. Brown
	
	  
	 Michael A. Feiner

	
	  
	 James M. Pirrello

  

			
	 CONTINENTAL STOCK TRANSFER
 & TRUST
COMPANY

		
	By:	 	 
	 	 	Name: Steven G. Nelson
	 	 	Title:   Chairman

  
 EXHIBIT A 

 

							
	 Name and Address of
 Initial
Stockholder

	  	 Number
 of Shares

	  	 Stock
 Certificate Number

	  	 Date of
 Insider Letter

	 Michael D. Sivage Revocable Trust UTA dated January 24, 2001
 4902 Alameda Boulevard, NE
 Albuquerque, NM 87113
	  	2,500,000	  	001	  	July     , 2006
	 Douglas M. Brown
 2030 Los Poblanos Place
 Albuquerque, NM 87107
	  	78,125	  	002	  	July     , 2006
	 Michael A. Feiner
 4764 South Clayton Ct
 Englewood, CO 80113
	  	78,125	  	003	  	July     , 2006
	 James M. Pirrello
 4902 Alameda Boulevard, NE
 Albuquerque, NM 87113
	  	468,750	  	004	  	July     , 2006

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