Document:

Exhibit 10.1

 

THIS AMENDED AND RESTATED PROMISSORY NOTE
(“NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”).  THIS
NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF
UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH REGISTRATION
IS NOT REQUIRED.  

 

AMENDED AND RESTATED
PROMISSORY NOTE

 

	Principal Amount:  Up to $300,000	
     Dated as of June 14, 2021

    New York, New York

 

Reference is made to that
certain Promissory Note (the “Original Note”), dated as of December 11, 2020 (the “Effective Date”),
by and between Shelter Acquisition Corporation I, a Delaware corporation and blank check company (the “Maker”) and
Shelter Sponsor LLC, a Delaware limited liability company (the “Payee”). This Note amends and restates the Original
Note in its entirety and shall be deemed effective as of the Effective Date.

 

The Maker promises to
pay to the order of the Payee or its registered assigns or successors in interest, or order, the principal sum of up to Three Hundred
Thousand Dollars ($300,000) in lawful money of the United States of America, on the terms and conditions described below.  All
payments on this Note shall be made by check or wire transfer of immediately available funds or as otherwise determined by the Maker to
such account as the Payee may from time to time designate by written notice in accordance with the provisions of this Note.

 

1. Principal. The
principal balance of this Note shall be payable by the Maker on the earlier of: (i) September 30, 2021 or (ii) the date on which Maker
consummates an initial public offering of its securities. The principal balance may be prepaid at any time. Under no circumstances
shall any individual, including but not limited to any officer, director, employee or shareholder of the Maker, be obligated personally
for any obligations or liabilities of the Maker hereunder.

 

2. Interest. No
interest shall accrue on the unpaid principal balance of this Note.

 

3. Drawdown
Requests. Maker and Payee agree that Maker may request up to Three Hundred Thousand Dollars ($300,000) for costs reasonably related
to Maker’s initial public offering of its securities. The principal of this Note may be drawn down from time to time prior to the
earlier of: (i) June 30, 2021 or (ii) the date on which Maker consummates an initial public offering of its securities, upon written request
from Maker to Payee (each, a “Drawdown Request”). Each Drawdown Request must state the amount to be drawn down, and
must not be an amount less than One Thousand Dollars ($1,000) unless agreed upon by Maker and Payee. Payee shall fund each Drawdown Request
no later than one (1) business day after receipt of a Drawdown Request; provided, however, that the maximum amount of drawdowns collectively
under this Note is Three Hundred Thousand Dollars ($300,000). No fees, payments or other amounts shall be due to Payee in connection with,
or as a result of, any Drawdown Request by Maker.

 

4. Application
of Payments. All payments shall be applied first to payment in full of any costs incurred in the collection of any sum due under
this Note, including (without limitation) reasonable attorney’s fees, then to the payment in full of any late charges and finally
to the reduction of the unpaid principal balance of this Note.

 

5. Events
of Default. The following shall constitute an event of default (“Event of Default”):

 

(a) Failure
to Make Required Payments. Failure by Maker to pay the principal amount due pursuant to this Note within five (5) business days of
the date specified above.

 

(b) Voluntary
Bankruptcy, Etc. The commencement by Maker of a voluntary case under any applicable bankruptcy, insolvency, reorganization, rehabilitation
or other similar law, or the consent by it to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian,
sequestrator (or other similar official) of Maker or for any substantial part of its property, or the making by it of any assignment for
the benefit of creditors, or the failure of Maker generally to pay its debts as such debts become due, or the taking of corporate action
by Maker in furtherance of any of the foregoing.

 

     

     

    

 

(c) Involuntary
Bankruptcy, Etc. The entry of a decree or order for relief by a court having jurisdiction in the premises in respect of Maker in an
involuntary case under any applicable bankruptcy, insolvency or other similar law, or appointing a receiver, liquidator, assignee, custodian,
trustee, sequestrator (or similar official) of Maker or for any substantial part of its property, or ordering the winding-up or liquidation
of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of 60 consecutive days.

  

6. Remedies.

 

(a) Upon
the occurrence of an Event of Default specified in Section 5(a) hereof, Payee may, by written notice to Maker, declare this Note to be
due immediately and payable, whereupon the unpaid principal amount of this Note, and all other amounts payable hereunder, shall become
immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby expressly waived,
anything contained herein or in the documents evidencing the same to the contrary notwithstanding. 

 

(b) Upon
the occurrence of an Event of Default specified in Sections 5(b) and 5(c), the unpaid principal balance of this Note, and all other sums
payable with regard to this Note, shall automatically and immediately become due and payable, in all cases without any action on the part
of Payee.

 

7. Waivers. Maker
and all endorsers and guarantors of, and sureties for, this Note waive presentment for payment, demand, notice of dishonor, protest, and
notice of protest with regard to the Note, all errors, defects and imperfections in any proceedings instituted by Payee under the terms
of this Note, and all benefits that might accrue to Maker by virtue of any present or future laws exempting any property, real or personal,
or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale under execution, or providing for
any stay of execution, exemption from civil process, or extension of time for payment; and Maker agrees that any real estate that may
be levied upon pursuant to a judgment obtained by virtue hereof or any writ of execution issued hereon, may be sold upon any such writ
in whole or in part in any order desired by Payee.

 

8. Unconditional
Liability. Maker hereby waives all notices in connection with the delivery, acceptance, performance, default, or enforcement
of the payment of this Note, and agrees that its liability shall be unconditional, without regard to the liability of any other party,
and shall not be affected in any manner by any indulgence, extension of time, renewal, waiver or modification granted or consented to
by Payee, and consents to any and all extensions of time, renewals, waivers, or modifications that may be granted by Payee with respect
to the payment or other provisions of this Note, and agrees that additional makers, endorsers, guarantors, or sureties may become parties
hereto without notice to Maker or affecting Maker’s liability hereunder.

 

9. Notices. All
notices, statements or other documents which are required or contemplated by this Note shall be made in writing and delivered: (i) personally
or sent by first class registered or certified mail, overnight courier service or facsimile or electronic transmission to the address
designated in writing, (ii) by facsimile to the number most recently provided to such party or such other address or fax number as may
be designated in writing by such party or (iii) by electronic mail, to the electronic mail address most recently provided to such party
or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted
shall be deemed to have been given on the day of delivery, if delivered personally, on the business day following receipt of written confirmation,
if sent by facsimile or electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days
after mailing if sent by mail.

 

10. Construction. THIS
NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF.

 

11. Severability. Any
provision contained in this Note which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

 

    2

     

    

 

12. Trust
Waiver.  Notwithstanding anything herein to the contrary, the Payee hereby waives any and all right, title, interest or
claim of any kind (“Claim”) in or to any distribution of or from the trust account (the “Trust Account”)
to be established in which the proceeds of the initial public offering (the “IPO”) to be conducted by the Maker (including
the deferred underwriters discounts and commissions) and certain of the proceeds of the sale of warrants to be issued in a private placement
to occur in connection with the closing of the IPO are to be deposited, as described in greater detail in the registration statement and
prospectus to be filed with the U.S. Securities and Exchange Commission in connection with the IPO, and hereby agrees not to seek recourse,
reimbursement, payment or satisfaction for any Claim against the Trust Account for any reason whatsoever.

 

13. Amendment;
Waiver.  Any amendment hereto or waiver of any provision hereof may be made with, and only with, the written consent of
the Maker and the Payee.

 

14. Assignment.  No
assignment or transfer of this Note or any rights or obligations hereunder may be made by any party hereto (by operation of law or otherwise)
without the prior written consent of the other party hereto and any attempted assignment without the required consent shall be void.

 

[Signature page follows]

 

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IN WITNESS WHEREOF,
Maker, intending to be legally bound hereby, has caused this Note to be duly executed by the undersigned as of the day and year first
above written.

 

	 	SHELTER ACQUISITION CORPORATION I
	 	 	 
	 	
     

    By:
	  /s/ Danion Fielding
	 	 	Name: Danion Fielding
	 	 	Title: Chief Financial Officer

 

Acknowledged and agreed to as of

 

the day and year first written above:

 

	SHELTER SPONSOR LLC	 
	 	 
	/s/ Christopher Keber	 
	Name: 	Christopher Keber	 
	Title: 	Manager	 

 

[Signature Page to Promissory Note]

 

     

     

    

 

SCHEDULE OF BORROWINGS

 

The following increases or decreases in this Promissory Note have been
made:

 

	Date of Increase or Decrease	 	Amount of decrease in Principal Amount of this Promissory Note	 	 	Amount of increase in Principal Amount of this Promissory Note	 	 	Principal Amount of this Promissory Note following such decrease or increase	 
	February 16, 2021	 	 	     	 	 	$	100,000	 	 	$	100,000	 
	March 1, 2021	 	 	 	 	 	$	70,000	 	 	$	170,000	 
	March 3, 2021	 	 	 	 	 	$	70,000	 	 	$	240,000Exhibit 10.2

 

[●],
2021

 

Shelter Acquisition Corporation I

6 Midland Street #1726

Quogue, New York 11959

 

		Re:	Initial Public Offering

 

Ladies and Gentlemen:

 

This letter (this
“Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the
“Underwriting Agreement”) entered into by and between Shelter Acquisition Corporation I, a Delaware
corporation (the “Company”), and Citigroup Global Markets, Inc. and Wells Fargo Securities, LLC, as representatives (the
“Representatives”) of the several underwriters (the “Underwriters”),
relating to an underwritten initial public offering (the “Public Offering”) of 23,000,000 of the
Company’s units (including 3,000,000 units that may be purchased pursuant to the Underwriters’ option to purchase
additional units, the “Units”), each comprising of one share of the Company’s Class A common
stock, par value $0.0001 per share (the “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 Common Stock at a price of $11.50 per share, subject to adjustment. 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”). Certain capitalized terms used
herein are defined in paragraph 1 hereof.

 

In order to induce the Company and the Underwriters
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, Shelter Sponsor LLC (the “Sponsor”) and
each of the undersigned (each, an “Insider” and, collectively, the “Insiders”)
hereby agree with the Company as follows:

 

1. Definitions.
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) “Founder
Shares” shall mean the 5,750,000 shares of Class B common stock of the Company, par value $0.0001 per share, outstanding
prior to the consummation of the Public Offering; (iii) “Private Placement Warrants” shall mean the warrants
to purchase shares of Common Stock of the Company that will be acquired by the Sponsor for an aggregate purchase price of $6,250,000
(or up to $6,850,000 if the Underwriters exercise their option to purchase additional Units) or $1.00 per Warrant, in a private
placement that shall close simultaneously with the consummation of the Public Offering (including Common Stock issuable upon conversion
thereof); (iv) “Public Stockholders” shall mean the holders of Common Stock included in the Units issued
in the Public Offering; (v) “Public Shares” shall mean the Common Stock included in the Units issued
in the Public Offering; (vi) “Trust Account” shall mean the trust account into which a portion of the
net proceeds of the Public Offering and the sale of the Private Placement Warrants shall be deposited; (vii) “Transfer”
shall mean the (a) sale of, offer to sell, contract or agreement to sell, hypothecate, 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 Section 16 of the Securities Exchange
Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder 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); and (viii) “Charter”
shall mean the Company’s Amended and Restated Certificate of Incorporation, as the same may be amended from time to time.

 

2. Representations
and Warranties.

 

(a) The
Sponsor and each Insider, with respect to itself, herself or himself, represent and warrant to the Company that it, she or he has
the full right and power, without violating any agreement to which it, she or he is bound (including, without limitation, any non-competition
or non-solicitation agreement with any employer or former employer), to enter into this Letter Agreement. Each Insider that is
a Director or Officer represents and warrants on behalf of himself or herself that she or he has the full right and power without
violating any agreement to which it, she or he is bound (including, without limitation, any non-competition or non-solicitation
agreement with any employer or former employer), to enter into this Letter Agreement to serve as an officer of the Company and/or
a director on the Company’s Board of Directors (the “Board”), as applicable, and each such Insider
hereby consents to being named in the Prospectus, road show and any other materials as an officer and/or director of the Company,
as applicable.

 

    

     

    

 

(b) Each
Insider that is a natural person represents and warrants, with respect to herself or himself, that such Insider’s biographical
information furnished to the Company (including any such information included in the Prospectus) is true and accurate in all material
respects and does not omit any material information with respect to such Insider’s background; and such Insider’s questionnaire
furnished to the Company is true and accurate in all material respects. Each such Insider represents and warrants that such Insider
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; such Insider 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 such Insider is not currently a defendant in any such criminal
proceeding; and such Insider 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.

 

3. Business
Combination Vote. It is acknowledged and agreed that the Company shall not enter into a definitive agreement regarding a proposed
Business Combination without the prior consent of the Sponsor. The Sponsor and each Insider, with respect to itself, herself or
himself, agrees that if the Company seeks stockholder approval of a proposed initial Business Combination, then in connection with
such proposed initial Business Combination, it, she or he, as applicable, shall vote all Founder Shares and any Public Shares held
by it, her or him, as applicable, in favor of such proposed initial Business Combination (including any proposals recommended by
the Board in connection with such Business Combination) and not redeem any Public Shares held by it, her or him, as applicable,
in connection with such stockholder approval.

 

4. Failure
to Consummate a Business Combination; Trust Account Waiver.

 

(a) The
Sponsor and each Insider that is a natural person hereby agree, with respect to itself, herself or himself, that in the event that
the Company fails to consummate its initial Business Combination within the time period set forth in the Charter, the Sponsor and
each such 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 10 business days thereafter, redeem 100% of the Public Shares, at
a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned
on the funds held in the Trust Account and not previously released to the Company to pay income taxes (less up to $100,000 of interest
to pay dissolution expenses), divided by the number of then outstanding Public Shares, which redemption will completely extinguish
Public Stockholders’ rights as stockholders (including the right to receive further liquidation distributions, if any); and
(iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining stockholders
and the Board, liquidate and dissolve, subject in the case of clauses (ii) and (iii) to the Company’s obligations under Delaware
law to provide for claims of creditors and in all cases subject to the other requirements of applicable law. The Sponsor and each
Insider agree not to propose any amendment to the Charter (i) that would modify the substance or timing of the Company’s
obligation to provide holders of the Public Shares the right to have their shares redeemed in connection with an initial Business
Combination or to redeem 100% of the Public Shares if the Company does not complete an initial Business Combination within the
required time period set forth in the Charter or (ii) with respect to any provision relating to the rights of holders of Public
Shares unless the Company provides its Public Stockholders with the opportunity to redeem their Public 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 earned on the funds held in the Trust Account and not previously released to the Company to pay taxes, if any, divided
by the number of then-outstanding Public Shares.

 

(b) The
Sponsor and each Insider, with respect to itself, herself or himself, acknowledges that it, she or he has no right, title, interest
or claim of any kind in or to any monies held in the Trust Account of the Company as a result of any liquidation of the Company
with respect to the Founder Shares held by it, her or him, if any. The Sponsor and each of the Insiders hereby further waive, with
respect to any Founder Shares and Public Shares held by it, her or him, as applicable, any redemption rights it, she or he may
have in connection with the consummation of a Business Combination, including, without limitation, any such rights available in
the context of a stockholder vote to approve such Business Combination or a stockholder vote to approve an amendment to the Charter
(i) that would modify the substance or timing of the Company’s obligation to provide holders of the Public Shares the right
to have their shares redeemed in connection with an initial Business Combination or to redeem 100% of the Public Shares if the
Company has not consummated an initial Business Combination within the time period set forth in the Charter or (ii) with respect
to any provision relating to the rights of holders of Public Shares (although the Sponsor and the Insiders shall be entitled to
liquidation rights with respect to any Public Shares they hold if the Company fails to consummate a Business Combination within
the required time period set forth in the Charter).

 

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5. Lock-up;
Transfer Restrictions.

 

(a) The
Sponsor and the Insiders agree that they shall not Transfer any Founder Shares (the “Founder Shares Lock-up”)
until the earliest of (A) one year after the completion of an initial Business Combination and (B) following the completion of
an initial Business Combination, the date on which the Company completes a liquidation, merger, capital stock exchange, reorganization
or other similar transaction that results in all of the Company’s stockholders having the right to exchange their Common
Stock for cash, securities or other property (the “Founder Shares Lock-up Period”). Notwithstanding the
foregoing, if, subsequent to a Business Combination, the closing price of the Common Stock equals or exceeds $12.00 per share (as
adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within a 30-trading
day period commencing at least 150 days after the Company’s initial Business Combination, the Founder Shares shall be released
from the Founder Shares Lock-up.

 

(b) The
Sponsor and Insiders agree that they shall not effectuate any Transfer of Private Placement Warrants or Common Stock underlying
such warrants until 30 days after the completion of an initial Business Combination.

 

(c) Notwithstanding
the provisions set forth in paragraphs 5(a) and (b), Transfers of the Founder Shares, Private Placement Warrants
and Common Stock underlying the Private Placement Warrants 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 members or partners of the Sponsor or their
affiliates, any affiliates of the Sponsor, or any employees of such affiliates; (b) in the case of an individual, by gift to a
member of one of the individual’s immediate family or to a trust, the beneficiary of which is a member of the individual’s
immediate family, an affiliate of such person or to a charitable organization; (c) in the case of an individual, by virtue of laws
of descent and distribution upon death of the individual; (d) in the case of an individual, pursuant to a qualified domestic relations
order; (e) by private sales or transfers made in connection with the consummation of a Business Combination at prices no greater
than the price at which the Founder Shares, Private Placement Warrants or Common Stock, as applicable, were originally purchased;
(f) by virtue of the laws of Delaware or the Sponsor’s organizational documents upon liquidation or dissolution of the Sponsor;
(g) to the Company for no value for cancellation in connection with the consummation of an initial Business Combination; (h)
in the event of the Company’s liquidation prior to the completion of an initial Business Combination; or (i) in the event
of the Company’s completion of a liquidation, merger, share exchange or other similar transaction which results in all of
the Company’s Public Stockholders having the right to exchange their Common Stock for cash, securities or other property
subsequent to the completion of an initial Business Combination; provided, however, that in the case of clauses (a)
through (f) these permitted transferees must enter into a written agreement agreeing to be bound by these transfer restrictions.

 

(d) During
the period commencing on the effective date of the Underwriting Agreement and ending 180 days after such date, the Sponsor and
each Insider shall not, without the prior written consent of the Representatives, Transfer any Units, Common Stock, Warrants or
any other securities convertible into, or exercisable or exchangeable for, Common Stock held by it, her or him, as applicable,
subject to certain exceptions enumerated in Section [●] of the Underwriting Agreement.

 

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6. Remedies.
The Sponsor and each of the Insiders hereby agree and acknowledge that (i) each of the Underwriters and the Company would be irreparably
injured in the event of a breach by the Sponsor or such Insider of its, her or his obligations, as applicable under paragraphs
3, 4, 5, 7, 10 and 11, (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.

 

7. Payments
by the Company. Except as disclosed in the Prospectus, neither the Sponsor nor any affiliate of the Sponsor nor any director
or officer of the Company nor any affiliate of the officers shall receive from the Company any finder’s fee, reimbursement,
consulting fee, monies in respect of any payment 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).

 

8. Director
and Officer Liability Insurance. The Company will maintain an insurance policy or policies providing directors’ and officers’
liability insurance, and each Insider that is a director or officer shall be covered by such policy or policies, in accordance
with its or their terms, to the maximum extent of the coverage available for any of the Company’s directors or officers.

 

9. Termination.
This Letter Agreement shall terminate on the earlier of (i) the expiration of the Founder Shares Lock-up Period and (ii) the liquidation
of the Company.

 

10. Indemnification.
In the event of the liquidation of the Trust Account upon the failure of the Company to consummate its initial Business Combination
within the time period set forth in the Charter, the Sponsor (the “Indemnitor”) agrees to indemnify and
hold harmless the Company against any and all loss, liability, claim, damage and expense whatsoever (including, but not limited
to, any and all legal or other expenses reasonably incurred in investigating, preparing or defending against any litigation, whether
pending or threatened) to which the Company may become subject as a result of any claim by (i) any third party for services rendered
or products sold to the Company (except for the Company’s independent auditors) or (ii) any prospective target business with
which the Company has discussed entering into a transaction agreement (a “Target”); provided,
however, that such indemnification of the Company by the Indemnitor (x) shall apply only to the extent necessary to ensure
that such claims by a third party for services rendered or products sold to the Company or a Target do not reduce the amount of
funds in the Trust Account to below the lesser of (i) $10.00 per Public Share and (ii) the actual amount per Public Share held
in the Trust Account as of the date of the liquidation of the Trust Account if less than $10.00 per Public Share due to reductions
in the value of the trust assets, in each case net of interest that may be withdrawn to pay the Company’s tax obligations,
(y) shall not apply to any claims by a third party or Target who executed a waiver of any and all rights to the monies held in
the Trust Account (whether or not such waiver is enforceable) and (z) shall not apply to any claims under the Company’s indemnity
of the Underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended. The Indemnitor
shall have the right to defend against any such claim with counsel of its choice reasonably satisfactory to the Company if, within
15 days following written receipt of notice of the claim to the Indemnitor, the Indemnitor notifies the Company in writing that
it shall undertake such defense.

 

11. Forfeiture
of Founder Shares. To the extent that the Underwriters do not exercise their option to purchase additional Units within 45
days from the date of the Prospectus in full (as further described in the Prospectus), the Sponsor agrees to automatically surrender
to the Company for no consideration, for cancellation at no cost, an aggregate number of Founder Shares so that the number of Founder
Shares will equal 20% of the sum of the total number of Common Stock and Founder Shares outstanding at such time. The Sponsor and
Insiders further agree that to the extent that the size of the Public Offering is increased or decreased, the Company will effect
a stock split, stock dividend, reverse stock split or stock repurchase, as applicable, with respect to the Founder Shares immediately
prior to the consummation of the Public Offering in such amount as to maintain the number of Founder Shares at 20% of the sum of
the total number of Common Stock and Founder Shares outstanding at such time.

 

12. Entire
Agreement. 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 all parties hereto.

 

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13. Assignment.
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 paragraph 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, each of the Insiders and each of their respective successors, heirs, personal representatives and assigns and permitted
transferees.

 

14. Counterparts.
This Letter Agreement may be executed in any number of 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. Signatures to this Agreement
transmitted via facsimile or e-mail shall be valid and effective to bind the party so signing (including any electronic signature
covered by the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act, the Electronic Signatures and Records Act or
other applicable law, e.g., www.docusign.com).

 

15. Effect
of Headings. The paragraph headings herein are for convenience only and are not part of this Letter Agreement and shall not
affect the interpretation thereof.

 

16. Severability.
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. Governing
Law. 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. Notices.
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 transmission.

 

[Signature
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    5

     

    

 

	 	Sincerely, 
	 	 
	 	SHELTER SPONSOR LLC
	 	 
	 	By:	 
	 	Name:  	Christopher Keber
	 	Title: 	Chief Executive Officer

 

[Signature
Page to Insider Letter Agreement]

 

    

     

    

 

	 	 
	 	[Names of Directors and Officers]

 

[Signature
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Acknowledged and Agreed:

 

SHELTER ACQUISITION CORPORATION I

 

	By:	 	 
	 	Name:	 Christopher Keber	 
	 	Title:	Chief Executive Officer	 

 

[Signature
Page to Insider Letter Agreement]

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