Document:

Exhibit 10.4

 

Brookline Capital Acquisition Corp.

600 Lexington Avenue, 33rd Floor

New York, NY 10022

 

January 28, 2021

 

Brookline Capital Markets,

a division of Arcadia Securities, LLC

600 Lexington Avenue, 33rd Floor

New York, NY 10022

 

Re: Administrative
Support Agreement

 

Ladies and Gentlemen:

 

This letter agreement
by and between Brookline Capital Acquisition Corp. (the “Company”) and Brookline Capital Markets, a division of Arcadia
Securities, LLC (the “BCM”), dated as of the date hereof, will confirm our agreement that, commencing on the date the
securities of the Company are first listed on The Nasdaq Capital Market (the “Listing Date”), pursuant to a Registration
Statement on Form S-1 and prospectus filed with the U.S. Securities and Exchange Commission (the “Registration Statement”)
and continuing until the earlier of the consummation by the Company of an initial business combination or the Company’s liquidation
(in each case as described in the Registration Statement) (such earlier date hereinafter referred to as the “Termination
Date”):

 

(i) BCM shall make available,
or cause to be made available, to the Company, at 600 Lexington Avenue, 33rd Floor New York, NY 10022 (or
any successor location of the BCM), certain office space, utilities and secretarial and administrative support as may be reasonably
required by the Company. In exchange therefor, the Company shall pay to BCM the sum of $10,000 per month on the Listing Date and
continuing monthly thereafter until the Termination Date; and

 

(ii) BCM hereby irrevocably
waives any and all right, title, interest, causes of action and claims of any kind as a result of, or arising out of, this letter
agreement (each, a “Claim”) in or to, and any and all right to seek payment of any amounts due to it out of, the trust
account established for the benefit of the public stockholders of the Company and into which substantially all of the proceeds
of the Company’s initial public offering will be deposited (the “Trust Account”) as a result of, or arising out
of, this letter agreement, and hereby irrevocably waives any Claim it may have in the future, which Claim would reduce, encumber
or otherwise adversely affect the Trust Account or any monies or other assets in the Trust Account, and further agrees not to seek
recourse, reimbursement, payment or satisfaction of any Claim against the Trust Account or any monies or other assets in the Trust
Account for any reason whatsoever.

 

This letter agreement
constitutes the entire agreement and understanding of the parties hereto in respect of its subject matter 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 amended, modified or waived as to any particular provision, except by a written instrument executed by the parties hereto.

 

No party hereto may assign
either this letter agreement or any of its rights, interests, or obligations hereunder without the prior written approval of the
other party. 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
constitutes the entire relationship of the parties hereto, and any litigation between the parties (whether grounded in contract,
tort, statute, law or equity) shall be governed by, construed in accordance with, and interpreted pursuant to the laws of the State
of New York, without giving effect to its choice of law principles.

 

[Signature Page Follows]

 

    	 

     

     

	 	Very truly yours,
	 	 
	 	BROOKLINE CAPITAL ACQUISITION CORP.
	 	 	 
	 	By:	/s/ Samuel P. Wertheimer
	 	 	Name:	Samuel P. Wertheimer
	 	 	Title:	Chief Executive Officer

 

AGREED TO AND ACCEPTED BY:

 

BROOKLINE CAPITAL MARKETS, 

A DIVISION OF ARCADIA SECURITIES, LLC

 

	By:	/s/ William B. Buchanan, Jr.	 
	 	Name:	William B. Buchanan, Jr.	 
	 	Title:	Managing Member	 

 

[Signature Page to Administrative Support
Agreement]Exhibit 10.5

 

UNIT SUBSCRIPTION
AGREEMENT

 

This UNIT SUBSCRIPTION AGREEMENT (this
“Agreement”) is made as of the 28th day of January 2021, by and between Brookline Capital Acquisition
Corp., a Delaware corporation (the “Company”), having its principal place of business at 600 Lexington
Avenue, 33rd Floor, New York, NY 10022, and Brookline Capital Holdings LLC, a Delaware limited liability
company (the “Subscriber”), having its principal place of business at 600 Lexington Avenue,
33rd Floor, New York, NY 10022.

 

WHEREAS, the Company desires to sell to
the Subscriber on a private placement basis (the “Offering”) an aggregate of 228,250 units (or up to 247,000
units if the over-allotment option in connection with the IPO (as defined below) is exercised in full) (the “Units”)
of the Company, each Unit comprised of one share of common stock of the Company, par value $0.0001 per share (“Common
Stock”) and one-half of one warrant, each whole warrant exercisable to purchase one share of Common Stock (“Warrant”),
for a purchase price of $10.00 per Unit. The shares of Common Stock underlying the Warrants are hereinafter referred to as the
“Warrant Shares”. The shares of Common Stock underlying the Units (excluding the Warrant Shares) are hereinafter
referred to as the “Placement Shares.” The Warrants underlying the Units are hereinafter referred to as the
“Placement Warrants.” The Units, Placement Shares, Placement Warrants and Warrant Shares, collectively, are
hereinafter referred to as the “Securities.” Each whole Placement Warrant is exercisable to purchase one share
of Common Stock at an exercise price of $11.50 during the period commencing 30 days following the consummation of the Company’s
initial business combination (the “Business Combination”), as such term is defined in the registration statement
in connection with the Company’s initial public offering of units (the “IPO”), as amended at the time
it becomes effective (the “Registration Statement”), and expiring on the fifth anniversary of the consummation
of the Business Combination; and

 

WHEREAS, the Subscriber wishes to purchase
228,250 Units (or up to 247,000 Units if the over-allotment option in connection with the IPO is exercised in full), and the Company
wishes to accept such subscription from Subscriber.

 

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

 

1. Agreement to Subscribe

 

1.1. Purchase and Issuance of the Units.
Upon the terms and subject to the conditions of this Agreement, the Subscriber hereby agrees to purchase from the Company, and
the Company hereby agrees to sell to the Subscriber, on the Initial Closing Date (as defined below) 228,250 Units in consideration
of the payment of the Purchase Price (as defined below). On the Initial Closing Date, the Company shall, at its option, deliver
to the Subscriber the certificates representing the Securities purchased or effect such delivery in book-entry form.

 

1.2. Purchase Price. The Subscriber shall
pay $2,282,500 (the “Purchase Price”) by wire transfer of immediately available funds or by such other method
as may be reasonably acceptable to the Company, to the trust account (the “Trust Account”) at a financial
institution to be chosen by the Company, maintained by Continental Stock Transfer & Trust Company, acting as trustee (“Continental”),
one (1) business day prior to the date of effectiveness of the Registration Statement.

 

1.3. Initial Closing. The closing of the
purchase and sale of 228,250 Units shall take place simultaneously with the closing of the IPO (the “Initial Closing Date”).
The closing of such Units shall take place at the offices of Ellenoff Grossman & Schole LLP, 1345 Avenue of the Americas, 11th Floor,
New York, New York, 10105, or such other place as may be agreed upon by the parties hereto.

 

1.4. Purchase and Issuance of Additional
Units. Upon the terms and subject to the conditions of this Agreement, the Subscriber hereby agrees to purchase from the Company,
and the Company hereby agrees to sell to the Subscriber, on the Over-allotment Closing Date (as defined below) up to an aggregate
of 18,750 Units in consideration of the payments of the Over-allotment Purchase Price (as defined below) and in the same proportion
as the amount of the over-allotment option is exercised. On the Over-allotment Closing Date (as defined below), the Company shall,
at its option, deliver to the Subscriber the certificates representing the Securities purchased or effect such delivery in book-entry
form.

 

     

     

     

1.5. Purchase Price. The Subscriber shall
pay up to $187,500 (if the over-allotment option in connection with the IPO is exercised in full) (the “Over-allotment
Purchase Price”) by wire transfer of immediately available funds or by such other method as may be reasonably acceptable
to the Company, to the Trust Account on the date of the consummation of the closing of the over-allotment option, and concurrently
with the consummation thereof, or on such earlier time and date as may be mutually agreed by the Company and the Subscriber (each
such date, an “Over-allotment Closing Date”; together with the Initial Closing Date, the “Closing Dates”
and each, a “Closing Date”).

 

1.6. Over-Allotment Closing.
The Over-allotment Closing Date shall take place at the offices of Ellenoff Grossman & Schole LLP, 1345 Avenue of the Americas,
11th Floor, New York, New York, 10105, or such other place as may be agreed upon by the parties hereto.

 

1.7 Termination. This Agreement and each
of the obligations of the undersigned shall be null and void and without effect if a Closing does not occur prior to March 31,
2021.

 

2. Representations and Warranties
of Subscriber

 

Subscriber represents and warrants to the
Company that:

 

2.1. No Government Recommendation
or Approval. Subscriber understands that no federal or state agency has passed upon or made any recommendation or endorsement of
the Company or the Offering of the Securities.

 

2.2. Accredited Investor.
Subscriber represents that it is an “accredited investor” as such term is defined in Rule 501(a) of Regulation D under
the Securities Act of 1933, as amended (the “Securities Act”), and acknowledges that the sale contemplated hereby
is being made in reliance, among other things, on a private placement exemption to “accredited investors” under the
Securities Act and similar exemptions under state law.

 

2.3. Intent. Subscriber
is purchasing the Securities solely for investment purposes, for Subscriber’s own account (and/or for the account or benefit
of its members or affiliates, as permitted, pursuant to the terms of an agreement (the “Insider Letter”) to
be entered into with respect to the Securities between, among others, Subscriber and the Company, as described in the Registration
Statement), and not with a view to the distribution thereof and Subscriber has no present arrangement to sell the Securities to
or through any person or entity except as may be permitted under the Insider Letter. Subscriber shall not engage in hedging transactions
with regard to the Securities unless in compliance with the Securities Act.

 

2.4. Restrictions on Transfer.
Subscriber acknowledges and understands the Units are being offered in a transaction not involving a public offering in the United
States within the meaning of the Securities Act. The Securities have not been registered under the Securities Act and, if in the
future Subscriber decides to offer, resell, pledge or otherwise transfer the Securities, such Securities may be offered, resold,
pledged or otherwise transferred only (A) pursuant to an effective registration statement filed under the Securities Act, (B) pursuant
to an exemption from registration under Rule 144 promulgated under the Securities Act, if available, or (C) pursuant to any other
available exemption from the registration requirements of the Securities Act, and in each case in accordance with any applicable
securities laws of any state or any other jurisdiction. Notwithstanding the foregoing, Subscriber acknowledges and understands
the Securities are subject to transfer restrictions as described in Section 8 hereof. Subscriber agrees that if any transfer of
its Securities or any interest therein is proposed to be made, as a condition precedent to any such transfer, Subscriber may be
required to deliver to the Company an opinion of counsel satisfactory to the Company with respect to such transfer. Absent registration
or another available exemption from registration, Subscriber agrees it will not resell the Securities (unless otherwise permitted
pursuant to the Insider Letter, as described in the Registration Statement). Subscriber further acknowledges that because the Company
is a shell company, Rule 144 may not be available to Subscriber for the resale of the Securities until the one year anniversary
following consummation of the initial Business Combination of the Company, despite technical compliance with the requirements of
Rule 144 and the release or waiver of any contractual transfer restrictions. 

 

 

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2.5. Sophisticated Investor.

 

(i) Subscriber is sophisticated
in financial matters and is able to evaluate the risks and benefits of the investment in the Securities.

 

(ii) Subscriber is aware
that an investment in the Securities is highly speculative and subject to substantial risks because, among other things, the Securities
are subject to transfer restrictions and have not been registered under the Securities Act and therefore cannot be sold unless
subsequently registered under the Securities Act or an exemption from such registration is available. Subscriber is able to bear
the economic risk of its investment in the Securities for an indefinite period of time.

 

2.6. Independent Investigation.
Subscriber, in making the decision to purchase the Units, has relied upon an independent investigation of the Company and has not
relied upon any information or representations made by any third parties or upon any oral or written representations or assurances
from the Company, its officers, directors or employees or any other representatives or agents of the Company, other than as set
forth in this Agreement. Subscriber is familiar with the business, operations and financial condition of the Company and has had
an opportunity to ask questions of, and receive answers from the Company’s officers and directors concerning the Company
and the terms and conditions of the offering of the Units and has had full access to such other information concerning the Company
as Subscriber has requested. Subscriber confirms that all documents that it has requested have been made available and that Subscriber
has been supplied with all of the additional information concerning this investment which Subscriber has requested.

 

2.7 Organization and Authority.
Subscriber is duly organized, validly existing and in good standing under the laws of the State of Delaware and it possesses all
requisite power and authority necessary to carry out the transactions contemplated by this Agreement.

 

2.8. Authority. This Agreement
has been validly authorized, executed and delivered by Subscriber and is a valid and binding agreement enforceable in accordance
with its terms, subject to the general principles of equity and to bankruptcy or other laws affecting the enforcement of creditors’
rights generally.

 

2.9. No Conflicts. The
execution, delivery and performance of this Agreement and the consummation by Subscriber of the transactions contemplated hereby
do not violate, conflict with or constitute a default under (i) Subscriber's charter documents, (ii) any agreement or instrument
to which Subscriber is a party or (iii) any law, statute, rule or regulation to which Subscriber is subject, or any agreement,
order, judgment or decree to which Subscriber is subject.

 

2.10. No Legal Advice
from Company. Subscriber acknowledges it has had the opportunity to review this Agreement and the transactions contemplated by
this Agreement and the other agreements entered into between the parties hereto with Subscriber’s own legal counsel and investment
and tax advisors. Except for any statements or representations of the Company made in this Agreement and the other agreements entered
into between the parties hereto, Subscriber is relying solely on such counsel and advisors and not on any statements or representations
of the Company or any of its representatives or agents for legal, tax or investment advice with respect to this investment, the
transactions contemplated by this Agreement or the securities laws of any jurisdiction.

 

2.11. Reliance on Representations
and Warranties. Subscriber understands the Units are being offered and sold to Subscriber in reliance on exemptions from the registration
requirements under the Securities Act, and analogous provisions in the laws and regulations of various states, and that the Company
is relying upon the truth and accuracy of the representations, warranties, agreements, acknowledgments and understandings of Subscriber
set forth in this Agreement in order to determine the applicability of such provisions.

 

2.12. No General Solicitation.
Subscriber is not subscribing for the Units as a result of or subsequent to any general solicitation or general advertising, including
but not limited to any advertisement, article, notice or other communication published in any newspaper, magazine, or similar media
or broadcast over television or radio, or presented at any seminar or meeting or in a registration statement with respect to the
IPO filed with the Securities and Exchange Commission (“SEC”).

  

 

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2.13. Legend. Subscriber
acknowledges and agrees the certificates evidencing each of the Securities shall bear a restrictive legend (the “Legend”),
in form and substance substantially as set forth in Section 4 hereof.

 

3. Representations,
Warranties and Covenants of the Company

 

The Company represents
and warrants to, and agrees with, Subscriber that:

 

3.1. Valid Issuance of
Capital Stock. The total number of shares of all capital stock which the Company has authority to issue is 25,000,000 shares of
Common Stock and 1,000,000 shares of preferred stock, $0.0001 par value per share (“Preferred Stock”). As of
the date hereof, the Company has issued and outstanding 1,437,500 shares of Common Stock (of which up to 187,500 shares are subject
to forfeiture as described in the Registration Statement) and no shares of Preferred Stock. All of the issued shares of capital
stock of the Company have been duly authorized, validly issued, and are fully paid and non-assessable.

 

3.2 Title to Securities.
Upon issuance in accordance with, and payment pursuant to, the terms hereof and that certain warrant agreement to be entered into
between the Company and Continental, as warrant agent (the “Warrant Agreement”), as the case may be, each of
the Units, Placement Shares, Placement Warrants and Warrant Shares will be duly and validly issued, fully paid and non-assessable.
On the date of issuance of the Units and Warrant Shares shall have been reserved for issuance. Upon issuance in accordance with,
and payment pursuant to, the terms hereof and the Warrant Agreement, as the case may be, Subscriber will have or receive good title
to the Units, Placement Shares and Placement Warrants, free and clear of all liens, claims and encumbrances of any kind, other
than (i) transfer restrictions hereunder and pursuant to the Insider Letter and (ii) transfer restrictions under federal and state
securities laws.

 

3.3. Organization and
Qualification. The Company is a corporation duly incorporated, validly existing and in good standing under the laws of the State
of Delaware and has the requisite corporate power to own its properties and assets and to carry on its business as now being conducted.

 

3.4. Authorization; Enforcement.
(i) The Company has the requisite corporate power and authority to enter into and perform its obligations under this Agreement
and to issue the Securities in accordance with the terms hereof, (ii) the execution, delivery and performance of this Agreement
by the Company and the consummation by it of the transactions contemplated hereby have been duly authorized by all necessary corporate
action, and no further consent or authorization of the Company or its Board of Directors or stockholders is required, and (iii)
this Agreement constitutes valid and binding obligations of the Company enforceable against the Company in accordance with its
terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, fraudulent conveyance, moratorium, reorganization,
or similar laws relating to, or affecting generally the enforcement of, creditors’ rights and remedies or by equitable principles
of general application and except as enforcement of rights to indemnity and contribution may be limited by federal and state securities
laws or principles of public policy.

 

3.5. No Conflicts. The
execution, delivery and performance of this Agreement and the consummation by the Company of the transactions contemplated hereby
do not (i) result in a violation of the Company’s certificate of incorporation or by-laws, (ii) conflict with, or constitute
a default under any agreement or instrument to which the Company is a party or (iii) any law statute, rule or regulation to which
the Company is subject or any agreement, order, judgment or decree to which the Company is subject. Other than any SEC or state
securities filings which may be required to be made by the Company subsequent to the Closing, and any registration statement which
may be filed pursuant thereto, the Company is not required under federal, state or local law, rule or regulation to obtain any
consent, authorization or order of, or make any filing or registration with, any court or governmental agency or self-regulatory
entity in order for it to perform any of its obligations under this Agreement or issue the Units, Placement Shares, Placement Warrants
or Warrant Shares in accordance with the terms hereof.

 

 

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4. Legends

 

4.1. Legend. The Company
will issue the Units, Placement Shares and Placement Warrants, and when issued, the Warrant Shares, purchased by the Subscriber
in the name of the Subscriber. The Securities will bear the following Legend and appropriate “stop transfer” instructions:

 

“THE SECURITIES
REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR
ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE
DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION
UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE.”

 

“THE SECURITIES
REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO LOCKUP PURSUANT TO AN INSIDER LETTER BETWEEN, AMONG OTHERS, BROOKLINE CAPITAL ACQUISITION
CORP. AND BROOKLINE CAPITAL HOLDINGS LLC AND MAY ONLY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED DURING THE TERM
OF THE LOCKUP PURSUANT TO THE TERMS SET FORTH IN THE INSIDER LETTER.”

 

4.2. Subscriber’s
Compliance. Nothing in this Section 4 shall affect in any way Subscriber’s obligations and agreements to comply with all
applicable securities laws upon resale of the Securities.

 

4.3. Company’s Refusal
to Register Transfer of the Securities. The Company shall refuse to register any transfer of the Securities, if in the sole judgment
of the Company such purported transfer would not be made (i) pursuant to an effective registration statement filed under the Securities
Act, or pursuant to an available exemption from the registration requirements of the Securities Act and (ii) in compliance herewith
and with the Insider Letter.

 

4.4 Registration Rights.
The Subscriber will be entitled to certain registration rights which will be governed by a registration rights agreement (“Registration
Rights Agreement”) to be entered into between, among others, the Subscriber and the Company, on or prior to the effective
date of the Registration Statement.

 

5. Waiver of
Liquidation Distributions.

 

In connection with the
Securities purchased pursuant to this Agreement, Subscriber hereby waives any and all right, title, interest or claim of any kind
in or to any distributions of the amounts in the Trust Account with respect to the Securities, whether (i) in connection with the
exercise of redemption rights if the Company consummates the Business Combination, (ii) in connection with any tender offer conducted
by the Company prior to a Business Combination, (iii) upon the Company’s redemption of shares of Common Stock sold in the
Company’s IPO upon the Company’s failure to timely complete the Business Combination or (iv) in connection with a stockholder
vote to approve an amendment to the Company’s amended and restated certificate of incorporation (A) to modify the substance
or timing of the Company’s obligation to redeem 100% of the Company’s public shares if the Company does not timely
complete the Business Combination or (B) with respect to any other provision relating to stockholders’ rights or pre-Business
Combination activity. In the event a Subscriber purchases shares of Common Stock in the IPO or in the aftermarket, any additional
shares so purchased shall be eligible to receive the redemption value of such shares of Common Stock upon the same terms offered
to all other purchasers of Common Stock in the IPO in the event the Company fails to consummate the Business Combination.

 

6. Terms of Placement
Warrants. Each Placement Warrant shall have the terms set forth in the Warrant Agreement.

 

7. [Reserved].

  

8. Terms of the
Units and Placement Warrants

 

8.1 The Units and their
component parts are substantially identical to the units to be offered in the IPO except that: (i) the Units and component parts
will be subject to transfer restrictions described in the Insider Letter, (ii) the Placement Warrants will be non-redeemable so
long as they are held by the initial holder thereof (or any of its permitted transferees), and may be exercisable on a “cashless”
basis if held by a Subscriber or its permitted transferees, as further described in the Warrant Agreement and (iii) the Units and
component parts are being purchased pursuant to an exemption from the registration requirements of the Securities Act and will
become freely tradable only after the expiration of the lockup described above in clause (i) and they are registered pursuant to
the Registration Rights Agreement to be signed on or before the date of the Prospectus or an exemption from registration is available.

 

 

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8.2 Subscriber agrees
to vote the Placement Shares in accordance with the terms of the Insider Letter and as otherwise described in the Registration
Statement.

 

9. Governing
Law; Jurisdiction; Waiver of Jury Trial

 

This Agreement shall be
governed by and construed in accordance with the laws of the State of New York for agreements made and to be wholly performed within
such state. The parties hereto hereby waive any right to a jury trial in connection with any litigation pursuant to this Agreement
and the transactions contemplated hereby.

 

10. Assignment; Entire Agreement;
Amendment

 

10.1. Assignment. Neither
this Agreement nor any rights hereunder may be assigned by any party to any other person other than by a Subscriber to a person
agreeing to be bound by the terms hereof, including the waiver contained in Section 7 hereof.

 

10.2. Entire Agreement.
This Agreement sets forth the entire agreement and understanding between the parties as to the subject matter thereof and merges
and supersedes all prior discussions, agreements and understandings of any and every nature among them.

 

10.3. Amendment. Except
as expressly provided in this Agreement, neither this Agreement nor any term hereof may be amended, waived, discharged or terminated
other than by a written instrument signed by all of the parties hereto.

 

10.4. Binding upon Successors.
This Agreement shall be binding upon and inure to the benefit of the parties hereto and to their respective heirs, legal representatives,
successors and permitted assigns.

 

11. Notices

 

11.1 Notices. Unless otherwise
provided herein, any notice or other communication to a party hereunder shall be sufficiently given if in writing and personally
delivered or sent by facsimile or other electronic transmission with copy sent in another manner herein provided or sent by courier
(which for all purposes of this Agreement shall include Federal Express or other recognized overnight courier) or mailed to said
party by certified mail, return receipt requested, at its address provided for herein or such other address as either may designate
for itself in such notice to the other. Communications shall be deemed to have been received when delivered personally, on the
scheduled arrival date when sent by next day or 2nd-day courier service, or if sent by facsimile upon receipt of confirmation of
transmittal or, if sent by mail, then three days after deposit in the mail. If given by electronic transmission, such notice shall
be deemed to be delivered (a) if by electronic mail, when directed to an electronic mail address at which the stockholder has consented
to receive notice; (b) if by a posting on an electronic network together with separate notice to the stockholder of such specific
posting, upon the later of (1) such posting and (2) the giving of such separate notice; and (c) if by any other form of electronic
transmission, when directed to the stockholder.

 

12. Counterparts

 

This Agreement may be
executed in one or more counterparts, all of which when taken together shall be considered one and the same agreement and shall
become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both
parties need not sign the same counterpart. In the event that any signature is delivered by facsimile transmission or by e-mail
delivery of a “pdf” format data file, such signature shall create a valid and binding obligation of the party executing
(or on whose behalf such signature is executed) with the same force and effect as if such facsimile or “.pdf” signature
page were an original thereof.

 

13. Survival;
Severability

 

13.1. Survival. The representations,
warranties, covenants and agreements of the parties hereto shall survive the Closing Dates.

 

 

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13.2. Severability. In
the event that any provision of this Agreement becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable
or void, this Agreement shall continue in full force and effect without said provision; provided that no such severability shall
be effective if it materially changes the economic benefit of this Agreement to any party.

 

14. Headings.

 

The titles and subtitles
used in this Agreement are used for convenience only and are not to be considered in construing or interpreting this Agreement.

 

[remainder of page intentionally left blank]

 

 

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IN WITNESS WHEREOF, the
parties hereto have executed this Agreement to be effective as of the date first set forth above.

 

	 	COMPANY:
	 	 
	 	BROOKLINE CAPITAL ACQUISITION CORP.
	 	 	 
	 	By:	/s/ Samuel P. Wertheimer 
	 	 	Name: Samuel P. Wertheimer
	 	 	Title: Chief Executive Officer

 

	 	SUBSCRIBER:
	 	 
	 	BROOKLINE CAPITAL HOLDINGS LLC
	 	 	 
	 	By:	/s/ William B. Buchanan, Jr. 
	 	 	Name: William B. Buchanan, Jr.
	 	 	Title: Managing Member

 

 

[Signature Page of the Unit Subscription
Agreement with Sponsor]

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