Exhibit
10.1


 


March
10, 2021


 


G&P
Acquisition Corp. 


222
Bellevue Avenue 


Newport,
Rhode Island 02840


 


Re:
Initial Public Offering


 


Ladies
and Gentlemen:


 


This
letter (this “Letter Agreement”) is being delivered to you in accordance with that certain underwriting
agreement (the “Underwriting Agreement”) entered into or proposed to be entered into by and between
G&P Acquisition Corp., a Delaware corporation (the “Company”), and BMO Capital Markets Corp., as
underwriter (the “Underwriter” ), relating to an underwritten initial public offering (the “Public
Offering”), of up to 20,125,000 of the Company’s units (including up to 2,625,000 units that may be purchased
to cover the Underwriter’s option to purchase additional units, if any) (the “Units”), each comprised
of one share of Class A common stock of the Company, par value $0.0001 per share (“Class A Common Stock”),
and one-half of one redeemable warrant (each whole warrant, a “Warrant”). Each Warrant entitles the
holder thereof to purchase one share of Class A Common Stock at a price of $11.50 per share, subject to adjustment, as described
in the Prospectus (as defined below). The Units will be sold in the Public Offering pursuant to a registration statement on Form
S-1 and a prospectus (the “Prospectus”) filed by the Company with the U.S. Securities and Exchange Commission
(the “Commission”) and the Company has applied to have the Units listed on the New York Stock Exchange.
Certain capitalized terms used herein are defined in Section 11.


 


In
order to induce the Company and the Underwriter to enter into the Underwriting Agreement and to proceed with the Public Offering
and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, G&P Sponsor,
LLC, a Delaware limited liability company (the “Sponsor”), and the other undersigned persons (each such
other undersigned persons, an “Insider” and, collectively, the “Insiders”),
each hereby agrees, severally but not jointly, with the Company as follows:


 


1.
       The Sponsor and each Insider agrees that, if the Company seeks stockholder approval
of a proposed Business Combination, then in connection with such proposed Business Combination, it, he or she shall (i) vote any
shares of Capital Stock owned by it, him or her in favor of such proposed Business Combination (including any proposals recommended
by the Company’s board of directors in connection with such proposed Business Combination) and (ii) not redeem any shares
of Capital Stock owned by it, him or her in connection with such stockholder approval. If the Company seeks to consummate a proposed
Business Combination by engaging in a tender offer, the Sponsor and each Insider agrees that it, he or she will not sell or tender
any shares of Capital Stock owned by it, him or her to the Company in connection therewith.





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2.
       The Sponsor and each Insider hereby agrees that, in the event that the Company fails
to consummate a Business Combination within twenty (20) months from the closing of the Public Offering, or twenty-four (24) months
from the closing of the Public Offering if the Company has executed a letter of intent, agreement in principle or definitive
agreement for an initial business combination within twenty (20) months from the closing of the Public Offering (the “Completion
Window”), or such later period approved by the Company’s stockholders in accordance with the Company’s
second amended and restated certificate of incorporation (as further amended, supplemented or otherwise modified from time to
time, the “Certificate of Incorporation”), the Sponsor and each Insider shall take all reasonable steps
to cause the Company to (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible
but not more than ten (10) business days thereafter, subject to lawfully available funds therefor, redeem 100% of the Class A
Common Stock sold as part of the Units in the Public Offering (the “Offering Shares”), at a per share
price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest (which interest
shall be net of taxes payable (“Permitted Withdrawals”) and less up to $100,000 of interest to pay dissolution
expenses), divided by the number of the then outstanding Offering Shares, which redemption will completely extinguish all of the
Public Stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any),
subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of
the Company’s remaining stockholders and the Company’s board of directors, dissolve and liquidate, subject in each
case, to the Company’s obligations under Delaware law to provide for claims of creditors and any other requirements of applicable
law. The Sponsor and each Insider agrees to not propose any amendment to the Certificate of Incorporation (A) to modify the substance
or timing of the Company’s obligation to allow redemptions in connection with the Company’s initial Business Combination
or to redeem 100% of the Offering Shares if the Company does not complete its initial Business Combination within the Completion
Window or (B) with respect to any other provision relating to stockholders’ rights or pre-initial Business Combination activity,
unless the Company provides the Public Stockholders with the opportunity to redeem their Offering Shares upon approval of any
such amendment at a per share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including
interest (which interest shall be net of Permitted Withdrawals), divided by the number of the then outstanding Offering Shares.


 


The
Sponsor and each Insider acknowledges that it, he or she has no right, title, interest or claim of any kind in or to any monies
held in the Trust Account as a result of any liquidation of the Company with respect to the Founder Shares held by it, him or
her. The Sponsor and each Insider hereby further waives, with respect to any shares of Capital Stock held by it, him or her, if
any, any redemption rights it, he or she may have in connection with (x) a Business Combination, including, without limitation,
any such rights available in the context of a stockholder vote to approve such Business Combination or in the context of a tender
offer made by the Company to purchase shares of Class A Common Stock and (y) a stockholder vote to approve an amendment to the
Certificate of Incorporation (A) to modify the substance or timing of the Company’s obligation to allow redemptions in connection
with the Company’s initial Business Combination or to redeem 100% of the Offering Shares if the Company has not consummated
its initial Business Combination within the Completion Window or (B) with respect to any other provision relating to stockholders’
rights or pre-initial Business Combination activity (although the Sponsor and each Insider shall be entitled to redemption and
liquidation rights with respect to any Offering Shares it, he or she holds if the Company fails to consummate a Business Combination
within the Completion Window).





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3.
       Notwithstanding the provisions set forth in Sections 7(a) and (b), during
the period commencing on the effective date of the Underwriting Agreement and ending one-hundred-eighty (180) days after such
date, the Sponsor and each Insider shall not, without the prior written consent of the Underwriter, (i) offer, sell, contract
to sell, pledge or grant any option to purchase or otherwise dispose of (or enter into any transaction that is designed to, or
might reasonably be expected to, result in the disposition (whether by actual disposition or effective economic disposition due
to cash settlement or otherwise)), directly or indirectly, or establish or increase a put equivalent position or liquidate or
decrease a call equivalent position within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, and the
rules and regulations of the Commission promulgated thereunder (the “Exchange Act”), with respect to
any Units, shares of Class A Common Stock, Warrants or any securities convertible into, or exercisable or exchangeable for, shares
of Class A Common Stock, (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of
the economic consequences of ownership of any Units, shares of Class A Common Stock, Warrants or any securities convertible into,
or exercisable or exchangeable for, shares of Class A Common Stock owned by it, him or her, whether any such transaction is to
be settled by delivery of such securities, in cash or otherwise, or (iii) or publicly announce an intention to effect any such
transaction specified in clause (i) or clause (ii); provided, however, that the foregoing does not apply to the
forfeiture of any Founder Shares pursuant to their terms or any transfer of any Founder Shares to any current or future independent
director of the company (as long as such current or future independent director transferee is subject to this Letter Agreement
or executes an agreement substantially identical to the terms of this Letter Agreement, as applicable to directors and officers
at the time of such transfer and as long as, to the extent any reporting obligation pursuant to Section 16 of the Exchange Act
is triggered as a result of such transfer, any related filing includes a practical explanation as to the nature of the transfer).
The Sponsor and each Insider acknowledge and agree that, prior to the effective date of any release or waiver of the restrictions
set forth in this Section 3 or Section 7, the Company shall announce the impending release or waiver by press release
through a major news service at least two (2) business days before the effective date of the release or waiver. Any such release
or waiver granted shall only be effective two (2) business days after the publication date of such press release. The provisions
of this Section 3 will not apply if (i) the release or waiver is effected solely to permit a transfer of securities that
is not for consideration and (ii) the transferee has agreed in writing to be bound by the same terms described in this Letter
Agreement to the extent and for the duration that such terms remain in effect at the time of the transfer.


 


4.
       In the event of the liquidation of the Trust Account, the Sponsor (which for purposes
of clarification shall not extend to any other holder of limited liability company interests or any members or managers of the
Sponsor or to any other Insider) agrees to indemnify and hold harmless the Company against any and all loss, liability, claim,
damage and expense whatsoever (including, without limitation, any and all legal or other expenses reasonably incurred in investigating,
preparing or defending against any litigation, whether pending or threatened, or any claim whatsoever) to which the Company may
become subject as a result of any claim by (i) any third party (other than the Company’s independent registered public accounting
firm) for services rendered or products sold to the Company or (ii) a prospective target business with which the Company has discussed
entering into an agreement for a Business Combination (a “Target”); provided, however,
that such indemnification of the Company by the Sponsor shall apply only to the extent necessary to ensure that such claims by
a third party for services rendered (other than the Company’s independent registered public accounting firm) or products
sold to the Company or a Target do not reduce the amount of funds in the Trust Account to below (i) $10.10 per Offering Share
or (ii) such lesser amount per Offering Share held in the Trust Account as of the date of the liquidation of the Trust Account
due to reductions in the value of the trust assets as of the date of the liquidation of the Trust Account, in each case, net of
Permitted Withdrawals, except as to any claims by a third party who executed a waiver of any and all rights to seek access to
the Trust Account and except as to any claims under the Company’s indemnity of the Underwriter against certain liabilities,
including liabilities under the Securities Act of 1933, as amended. In the event that any such executed waiver is deemed to be
unenforceable against such third party, the Sponsor shall not be responsible to the extent of any liability for such third party
claims. The Sponsor shall have the right to defend against any such claim with counsel of its choice reasonably satisfactory to
the Company if, within fifteen (15) days following written receipt of notice of the claim to the Sponsor, the Sponsor notifies
the Company in writing that it shall undertake such defense. For the avoidance of doubt, none of the Company’s officers
or directors will indemnify the Company for claims by third parties, including, without limitation, claims by vendors or any Target.





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5.
       To the extent that the Underwriter does not exercise its over-allotment option up to
an additional 2,625,000 Units within forty-five (45) days from the date of the Prospectus (and as further described in the Prospectus),
the Sponsor agrees that it shall forfeit, at no cost, an aggregate number of the Founder Shares in the aggregate equal to the
product of (a) 656,250 multiplied by a fraction, (i) the numerator of which is 2,625,000 minus the number of Units purchased by
the Underwriter upon the exercise of its option to purchase additional Units, and (ii) the denominator of which is 2,625,000.
All references in this Letter Agreement to any Founder Shares of the Company being forfeited shall take effect as a contribution
of such Founder Shares to the Company’s capital as a matter of Delaware law. The forfeiture will be adjusted to the extent
that the over-allotment option is not exercised in full by the Underwriter so that the number of the Founder Shares will equal
an aggregate of 20.0% of the Company’s issued and outstanding shares of Capital Stock after the Public Offering. The Sponsor
and each Insider further agree that, to the extent that the size of the Public Offering is increased or decreased, the Company
will effect a capitalization, stock repurchase or redemption or stock split, reverse stock split or other appropriate mechanism,
as applicable, immediately prior to the consummation of the Public Offering in such amount as to maintain the number of the Founder
Shares at 20.0% of the Company’s issued and outstanding shares of Capital Stock upon the consummation of the Public Offering.
In connection with such increase or decrease in the size of the Public Offering, then (A) the references to 2,625,000 in the numerator
and denominator of the formula set forth in the first sentence of this Section 5 shall be changed to a number equal to
15.0% of the number of shares of Class A Common Stock included in the Units issued in the Public Offering and (B) the reference
to 656,250 in the formula set forth in the first sentence of this Section 5 shall be adjusted to such number of the Founder
Shares that the Sponsor would have to return to the Company in order for the number of the Founder Shares to equal an aggregate
of 20.0% of the Company’s issued and outstanding shares of Capital Stock after the Public Offering.


 


6.
       The Sponsor and each Insider hereby agrees and acknowledges that (i) the Underwriter
and the Company would be irreparably injured in the event of a breach by the Sponsor or such Insider of its, his or her obligations
under Sections 1, 2, 3, 4, 5, 7(a), 7(b) and 9, as applicable, of this
Letter Agreement, (ii) monetary damages may not be an adequate remedy for such breach and (iii) the non-breaching party shall
be entitled to seek injunctive relief, in addition to any other remedy that such party may have in law or in equity, in the event
of such breach.





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7.
       (a)        Subject to the exceptions set forth herein, the Sponsor and each Insider agree that it, he or she shall not Transfer
(as defined below) any Founder Shares (or shares of Class A Common Stock issuable upon conversion thereof) until the earlier of
(A) one (1) year after the completion of the Company’s initial Business Combination and (B) subsequent to the Business Combination,
(x) if the last reported sale price of the Class A Common Stock equals or exceeds $12.00 per share (as adjusted for stock splits,
stock dividends, reorganizations, recapitalizations and the like) for any twenty (20) trading days within any thirty (30)-trading
day period commencing at least one-hundred-fifty (150) days after the Company’s initial Business Combination or (y) the
date on which the Company completes a liquidation, merger, stock exchange, reorganization or other similar transaction that results
in all of the Public Stockholders having the right to exchange their shares of Class A Common Stock for cash, securities or other
property (the “Founder Shares Lock-Up Period”).


 


(b)
      Subject to the exceptions set forth herein, the Sponsor and each Insider agree that
it, he or she shall not Transfer any Private Placement Warrants or Working Capital Warrants (as defined below) (or shares of Class
A Common Stock issued or issuable upon the conversion or exercise of the Private Placement Warrants or Working Capital Warrants),
until thirty (30) days after the completion of the Company’s initial Business Combination (the “Private Placement
Warrants Lock-Up Period” and, together with the Founder Shares Lock-Up Period, the “Lock-Up Periods”).


 


(c)
       Notwithstanding the provisions set forth in Sections 3, 7(a) and (b),
Transfers of the Founder Shares, Private Placement Warrants, Working Capital Warrants and shares of Class A Common Stock issued
or issuable upon the exercise or conversion of the Private Placement Warrants, the Working Capital Warrants or the Founder Shares
and that are held by the Sponsor or any Insider or any of their respective permitted transferees (that have complied with this
Section 7(c)), are permitted (a) to the Company’s officers or directors, any affiliates or family members of any
of the Company’s officers or directors, any direct or indirect members, partners or shareholders of the Sponsor or any employee
or partner of any such member, partner or shareholder, or any Affiliates of the Sponsor, (b) in the case of an individual, transfers
by gift to a member of the individual’s immediate family, to a trust, the beneficiaries of which are one or more of the
individual’s immediate family or an affiliate of such person, or to a charitable organization, (c) in the case of an individual,
transfers by virtue of laws of descent and distribution upon death of such individual, (d) in the case of an individual, transfers
pursuant to a qualified domestic relations order, (e) transfers by virtue of law or the Sponsor’s operating agreement upon
dissolution of a person other than an individual, (f) transfers by private transfers or sales and transfers made in connection
with the consummation of the Company’s initial Business Combination at prices no greater than the price at which the securities
were originally purchased, (g) to an entity that is an Affiliate of such holder, (h) transfers in the event of the Company’s
liquidation prior to the completion of the Company’s initial Business Combination, (i) in the event of the Company’s
completion of a liquidation, merger, stock exchange, reorganization or other similar transaction which results in all of the Company’s
stockholders having the right to exchange their shares of Common Stock for cash, securities or other property subsequent to the
completion of the Company’s initial Business Combination, (j) to a nominee or custodian of a person or entity to whom a
disposition or transfer would be permissible under clauses (a) through (h) above; provided, however, that, in the
case of clauses (a) through (d), (f) and (i), these transferees must enter into a written agreement with the Company agreeing
to be bound by the transfer restrictions in this Letter Agreement. “Affiliate” means, with respect to
any holder any other person who, directly or indirectly (including through one or more intermediaries), controls, is controlled
by, or is under common control with, such person. For purposes of this definition, “control,” when used
with respect to any specified person, shall mean the power, direct or indirect, to direct or cause the direction of the management
and policies of such person, whether through ownership of voting securities or partnership or other ownership interests, by contract
or otherwise, and the terms “controlling” and “controlled” shall have correlative
meanings.





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8.
       The Sponsor and each Insider represent and warrant with respect to such Insider that
it, he or she has never been suspended or expelled from membership in any securities or commodities exchange or association or
had a securities or commodities license or registration denied, suspended or revoked. Each Insider’s represents and warrants
with respect to such Insider that such Insider’s biographical information furnished to the Company, if any (including any
such information included in the Prospectus), is true and accurate in all respects and does not omit any material information
with respect to such Insider’s background. The Sponsor and each Insider’s questionnaires furnished to the Company,
if any, are true and accurate in all respects. The Sponsor and each Insider represent and warrant with respect to such Insider
that it, he or she (a) is not subject to, or a respondent in, any legal action for, any injunction, cease-and-desist order or
order or stipulation to desist or refrain from any act or practice relating to the offering of securities in any jurisdiction,
(b) has never been convicted of, or pleaded guilty to, any crime (i) involving fraud, (ii) relating to any financial transaction
or handling of funds of another person, or (iii) pertaining to any dealings in any securities and (c) is not currently a defendant
in any such criminal proceeding.


 


9.
       Except as disclosed in, or as expressly contemplated by, the Prospectus, neither the
Sponsor nor any Insider nor any affiliate of the Sponsor or any Insider, nor any director or officer of the Company, shall receive
from the Company any finder’s fee, reimbursement, consulting fee, monies in respect of any repayment of a loan or other
compensation prior to, or in connection with any services rendered in order to effectuate, the consummation of the Company’s
initial Business Combination (regardless of the type of transaction that it is), other than the following, none of which will
be made from the proceeds held in the Trust Account prior to the completion of the Company’s initial Business Combination:
(i) repayment of a loan and advances of up to $300,000 made to the Company by the Sponsors to cover expenses related to the organization
of the Company and the Public Offering; (ii) reimbursement for any reasonable out-of-pocket expenses related to identifying, investigating
and consummating an initial Business Combination; and (iii) repayment of loans, if any, and on such terms as to be determined
by the Company from time to time, made by the Sponsor or certain of the Company’s officers and directors to finance transaction
costs in connection with the Company’s initial Business Combination; provided, however, that, if the Company
does not consummate an initial Business Combination, a portion of the working capital held outside the Trust Account may be used
by the Company to repay such loaned amounts so long as no proceeds from the Trust Account are used for such repayment. Up to $2,000,000
of such loans may be convertible into warrants (the “Working Capital Warrants”) of the post Business
Combination entity at a price of $1.00 per warrant at the option of the lender. Such warrants would be identical to the Private
Placement Warrants, including as to the exercise price, exercisability and exercise period.





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10.
    The Sponsor and each Insider has full right and power, without violating any agreement
by which it is bound (including, without limitation, any non-competition or non-solicitation agreement with any employer or former
employer), to enter into this Letter Agreement and, as applicable, to serve as an officer and/or a director on the board of directors
of the Company and hereby consents to being named in the Prospectus as an officer and/or a director of the Company.


 


11.
    As used herein, (i) “Business Combination” shall mean a merger,
capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination, involving the Company
and one or more businesses; (ii) “Capital Stock” shall mean, collectively, the Class A Common Stock
and the Founder Shares; (iii) “Founder Shares” shall mean the 5,031,250 shares of Class B common stock,
par value $0.0001 per share, issued and outstanding immediately prior to the consummation of the Public Offering; (iv) “Private
Placement Warrants” shall mean the Warrants to purchase up to an aggregate of 7,250,000 shares of Class A Common
Stock of the Company (or 8,037,500 shares of Class A Common Stock if the over-allotment option is exercised in full) that the
Sponsor has agreed to purchase for an aggregate purchase price of $7,250,000 (or $8,037,500 if the over-allotment option is exercised
in full), or $1.00 per Warrant, in a private placement that shall occur simultaneously with the consummation of the Public Offering;
(v) “Public Stockholders” shall mean the holders of securities issued in the Public Offering; (vi) “Trust
Account” shall mean the trust fund into which a portion of the net proceeds of the Public Offering and the sale
of the Private Placement Warrants shall be deposited; and (vii) “Transfer” shall mean the (a) sale or
assignment of, offer to sell, contract or agreement to sell, hypothecate or pledge, grant of any option to purchase or otherwise
dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent position or liquidation
with respect to or decrease of a call equivalent position within the meaning of the Exchange Act with respect to, any security,
(b) entry into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences
of ownership of any security, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise,
or (c) public announcement of any intention to effect any transaction specified in clause (a) or (b) above.


 


12.
     This Letter Agreement constitutes the entire agreement and understanding of the parties
hereto in respect of the subject matter hereof and supersedes all prior understandings, agreements or representations by or among
the parties hereto, written or oral, to the extent they relate in any way to the subject matter hereof or the transactions contemplated
hereby. This Letter Agreement may not be changed, amended, modified or waived (other than to correct a typographical error) as
to any particular provision, except by a written instrument executed by (1) each Insider that is the subject of any such change,
amendment modification or waiver and (2) the Sponsor.


 


13.
     Except as otherwise provided herein, no party hereto may assign either this Letter Agreement
or any of its rights, interests or obligations hereunder without the prior written consent of the other parties. Any purported
assignment in violation of this Section 13 shall be void and ineffectual and shall not operate to transfer or assign any
interest or title to the purported assignee. This Letter Agreement shall be binding on the Sponsor and each Insider and their
respective successors, heirs and assigns and permitted transferees.





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14.
     Nothing in this Letter Agreement shall be construed to confer upon, or give to, any
person or entity other than the parties hereto any right, remedy or claim under or by reason of this Letter Agreement or of any
covenant, condition, stipulation, promise or agreement hereof. All covenants, conditions, stipulations, promises and agreements
contained in this Letter Agreement shall be for the sole and exclusive benefit of the parties hereto and their successors, heirs,
personal representatives and assigns and permitted transferees.


 


15.
     This Letter Agreement may be executed in any number of original or facsimile counterparts
and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.


 


16.
     This Letter Agreement shall be deemed severable, and the invalidity or unenforceability
of any term or provision hereof shall not affect the validity or enforceability of this Letter Agreement or of any other term
or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties hereto intend that
there shall be added as a part of this Letter Agreement a provision as similar in terms to such invalid or unenforceable provision
as may be possible and be valid and enforceable.


 


17.
     This Letter Agreement shall be governed by and construed and enforced in accordance
with the laws of the State of New York, without giving effect to conflicts of law principles that would result in the application
of the substantive laws of another jurisdiction. The parties hereto (i) all agree that any action, proceeding, claim or dispute
arising out of, or relating in any way to, this Letter Agreement shall be brought and enforced in the courts of New York City,
in the State of New York, and irrevocably submit to such jurisdiction and venue, which jurisdiction and venue shall be exclusive
and (ii) waive any objection to such exclusive jurisdiction and venue or that such courts represent an inconvenient forum.


 


18.
     Any notice, consent or request to be given in connection with any of the terms or provisions
of this Letter 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 facsimile or other electronic transmission.


 


19.
     Each party hereto shall not be liable for any breaches or misrepresentations contained
in this Letter Agreement by any other party to this Letter Agreement (including, for the avoidance of doubt, any Insider with
respect to any other Insider), and no party shall be liable or responsible for the obligations of another party, including, without
limitation, indemnification obligations and notice obligations.


 


20.
     This Letter Agreement shall terminate on the earlier of (i) the expiration of the Lock-Up
Periods and (ii) the liquidation of the Company; provided, however, that this Letter Agreement shall earlier terminate
in the event that the Public Offering is not consummated and closed by May 31, 2021; provided, further, that Section
4 shall survive such liquidation.


 


[Signature
Pages Follow]






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	 	Sincerely,
	 	G&P SPONSOR, LLC
	 	 
	 	By:	/s/
    Michael R. Anderson
	 	 	Name: Michael R. Anderson
	 	 	Title:   Authorized Signatory
	 	 	 
	 	INSIDERS:
	 	 
	 	By:	/s/
    Brendan T. O’Donnell
	 	 	Name: Brendan T. O’Donnell
	 	 	 
	 	By:	/s/
    Nicholas S. Schorsch, Jr.
	 	 	Name: Nicholas S. Schorsch, Jr.
	 	 	 
	 	By:	/s/
    Joseph Marnikovic
	 	 	Name: Joseph Marnikovic
	 	 	 
	 	By:	/s/
    Michael R. Anderson
	 	 	Name: Michael R. Anderson
	 	 	 
	 	By:	/s/
    Nicholas S. Schorsch
	 	 	Name: Nicholas S. Schorsch
	 	 	 
	 	By:	/s/
    Edward M. Weil, Jr.
	 	 	Name: Edward M. Weil, Jr.
	 	 	 
	 	By:	/s/
    Leslie D. Michelson
	 	 	Name: Leslie D. Michelson
	 	 	 
	 	By:	/s/
    M. Therese Antone
	 	 	Name: M. Therese Antone
	 	 	 
	 	By:	/s/
    Nicholas Radesca
	 	 	Name: Nicholas Radesca
	 	 	 


	Acknowledged
    and Agreed:	 
	G&P
    ACQUISITION CORP.	 
	 	 
	By:	/s/
    Joseph Marnikovic	 
	 	Name:
    Joseph Marnikovic	 
	 	Title:
      Chief Financial Officer and Treasurer	 
	 	 	 









[Signature
Page to Letter Agreement—G&P Acquisition Corp.]