Document:

EX-10.18

 Exhibit 10.18 

GUARANTY 
 Effective as of October 28, 2022

 TO: LM FUNDING AMERICA, INC., a Delaware corporation (“Lender”) 

1. GUARANTY; DEFINITIONS. In consideration of the credit or other financial accommodation described herein and extended or made to SEASTAR
MEDICAL, INC., a Delaware corporation (“Borrower”), by Lender, and for other valuable consideration, the undersigned, SEASTAR MEDICAL HOLDING CORPORATION, a Delaware corporation (“Guarantor”), unconditionally
guarantees and promises to pay to Lender, or order, on demand in lawful money of the United States of America and in immediately available funds, any and all Indebtedness of the Borrower to Lender in connection with that certain Amended and Restated
Promissory Note dated as of even date herewith executed by Borrower and payable to the order of Lender in the principal sum of $700,000.00 (“Promissory Note”), together with all extensions, renewals and/or modifications of same
(which Indebtedness in connection with or relating to the Promissory Note and all such extensions, renewals and/or modifications shall be referred to herein as the “Note Indebtedness”), all without relief from valuation and
appraisement laws as applicable. The term “Indebtedness” is used herein in its most comprehensive sense and includes any and all advances, debts, obligations and liabilities of Borrower, heretofore, now or hereafter made, incurred
or created, whether voluntary or involuntary and however arising, whether due or not due, absolute or contingent, liquidated or unliquidated, determined or undetermined, and whether the Borrower may be liable individually or jointly with others, or
whether recovery upon such Indebtedness may be or hereafter becomes unenforceable. This Guaranty is a guaranty of payment and not collection. 

2. LIABILITY; OBLIGATION UNDER OTHER GUARANTIES. Any obligations incurred or to be incurred by the Borrower in addition to the Note
Indebtedness shall not modify or otherwise affect the obligations or liability of Guarantor hereunder. The obligations of Guarantor hereunder shall be in addition to any obligations of Guarantor under any other guaranties of any liabilities or
obligations of the Borrower or any other persons heretofore or hereafter given to Lender unless said other guaranties are expressly modified or revoked in writing; and this Guaranty shall not, unless expressly herein provided, affect or invalidate
any such other guaranties. 
 3. OBLIGATIONS INDEPENDENT; SEPARATE ACTIONS; WAIVER OF STATUTE OF LIMITATIONS; REINSTATEMENT OF LIABILITY.
The obligations hereunder are independent of the obligations of Borrower, and a separate action or actions may be brought and prosecuted against Guarantor whether action is brought against the Borrower or any other person, or whether the Borrower or
any other person is joined in any such action or actions. Guarantor acknowledges that this Guaranty is absolute and unconditional, there are no conditions precedent to the effectiveness of this Guaranty, and this Guaranty is in full force and effect
and is binding on Guarantor as of the date written below, regardless of whether Lender obtains collateral or any guaranties from others or takes any other action contemplated by Guarantor. To the extent permitted by applicable law, Guarantor waives
the benefit of any statute of limitations affecting Guarantor’s liability hereunder or the enforcement thereof, and 

 
Guarantor agrees that any payment of any Note Indebtedness or other act which shall toll any statute of limitations applicable thereto shall similarly operate to toll such statute of limitations
applicable to Guarantor’s liability hereunder. The liability of Guarantor hereunder shall be reinstated and revived and the rights of Lender shall continue if and to the extent for any reason any amount at any time paid on account of any Note
Indebtedness guaranteed hereby is rescinded or must otherwise be restored by Lender, whether as a result of any proceedings in bankruptcy or reorganization or otherwise, all as though such amount had not been paid. The determination as to whether
any amount so paid must be rescinded or restored shall be made by Lender in its sole discretion; provided however, that if Lender chooses to contest any such matter at the request of Guarantor, Guarantor agrees to indemnify and hold Lender harmless
from and against all costs and expenses, including reasonable attorneys’ fees, expended or incurred by Lender in connection therewith, including without limitation, in any litigation with respect thereto. 

4. AUTHORIZATIONS TO LENDER. Guarantor authorizes Lender, without notice to or demand on Guarantor, and without affecting Guarantor’s
liability hereunder, from time to time to: (a) alter, compromise, renew, extend, accelerate or otherwise change the time for payment of, or otherwise change the terms of the Note Indebtedness or any portion thereof, including increase or
decrease of the rate of interest thereon; (b) take and hold security for the payment of this Guaranty or the Note Indebtedness or any portion thereof, and exchange, enforce, waive, subordinate or release any such security; (c) apply such
security and direct the order or manner of sale thereof, including without limitation, a non-judicial sale permitted by the terms of the controlling security agreement, mortgage or deed of trust, as Lender in
its discretion may determine; (d) release or substitute any one or more of the endorsers or any other guarantors of the Note Indebtedness, or any portion thereof, or any other party thereto; and (e) apply payments received by Lender from
the Borrower to any Note Indebtedness of the Borrower to Lender, in such order as Lender shall determine in its sole discretion, whether or not such Note Indebtedness is covered by this Guaranty, and Guarantor hereby waives any provision of law
regarding application of payments which specifies otherwise. Lender may without notice assign this Guaranty in whole or in part. Upon Lender’s request, Guarantor agrees to provide to Lender copies of Guarantor’s financial statements. 

5. REPRESENTATIONS AND WARRANTIES. Guarantor represents and warrants to Lender that: (a) this Guaranty is executed at Borrower’s
request; (b) Guarantor shall not, without Lender’s prior written consent, sell, lease, assign, encumber, hypothecate, transfer or otherwise dispose of all or a substantial or material part of Guarantor’s assets other than in the
ordinary course of Guarantor’s business; (c) Lender has made no representation to Guarantor as to the creditworthiness of the Borrower; and (d) Guarantor has established adequate means of obtaining from the Borrower on a continuing
basis financial and other information pertaining to Borrower’s financial condition. Guarantor agrees to keep adequately informed from such means of any facts, events or circumstances which might in any way affect Guarantor’s risks
hereunder, and Guarantor further agrees that Lender shall have no obligation to disclose to Guarantor any information or material about the Borrower which is acquired by Lender in any manner. 

 6. SUBORDINATION. Any Indebtedness of the Borrower now or hereafter held by Guarantor is
hereby subordinated to the obligations of Borrower to Lender under the Note Indebtedness. Such Indebtedness of Borrower to Guarantor is assigned to Lender as security for this Guaranty and the Note Indebtedness and, if Lender requests, shall be
collected and received by Guarantor as trustee for Lender and paid over to Lender on account of the Note Indebtedness but without reducing or affecting in any manner the liability of Guarantor under the other provisions of this Guaranty. Any notes
or other instruments now or hereafter evidencing such Indebtedness of the Borrower to Guarantor shall be marked with a legend that the same are subject to this Guaranty and, if Lender so requests, shall be delivered to Lender. Lender is hereby
authorized in the name of Guarantor from time to time to file financing statements and continuation statements and execute such other documents and take such other action as Lender deems necessary or appropriate to perfect, preserve and enforce its
rights hereunder. 
 8. REMEDIES; NO WAIVER. All rights, powers and remedies of Lender hereunder are cumulative. No delay, failure or
discontinuance of Lender in exercising any right, power or remedy hereunder shall affect or operate as a waiver of such right, power or remedy; nor shall any single or partial exercise of any such right, power or remedy preclude, waive or otherwise
affect any other or further exercise thereof or the exercise of any other right, power or remedy. Any waiver, permit, consent or approval of any kind by Lender of any breach of this Guaranty, or any such waiver of any provisions or conditions
hereof, must be in writing and shall be effective only to the extent set forth in writing. 
 9. COSTS, EXPENSES AND ATTORNEYS’ FEES.
Guarantor shall pay to Lender immediately upon demand the full amount of all payments, advances, charges, costs and expenses, including, to the extent permitted by applicable law, reasonable attorneys’ fees expended or incurred by Lender in
connection with the enforcement of any of Lender’s rights, powers or remedies and/or the collection of any amounts which become due to Lender under this Guaranty, and the prosecution or defense of any action in any way related to this Guaranty,
whether or not suit is brought, and if suit is brought, whether incurred at the trial or appellate level, in an arbitration proceeding or otherwise, and including any of the foregoing incurred in connection with any bankruptcy proceeding (including
without limitation, any adversary proceeding, contested matter or motion brought by Lender or any other person) relating to Guarantor or any other person or entity. Notwithstanding anything in this Guaranty to the contrary, reasonable
attorneys’ fees shall not exceed the maximum amount permitted by law. Whenever Guarantor is obligated to pay for the attorneys’ fees of Lender, or the phrase “reasonable attorneys’ fees” or a similar phrase is used, it shall
be Guarantor’s obligation to pay the attorneys’ fees actually incurred or allocated, at standard hourly rates, without regard to any statutory interpretation, which shall not apply, Guarantor hereby waiving the application of any such
statute. Subject to any restrictions under applicable law pertaining to usury, all of the foregoing shall be paid by Guarantor with interest from the date of demand until paid in full at a rate per annum equal to ten percent (10%). 

10. SUCCESSORS; ASSIGNMENT. This Guaranty shall be binding upon and inure to the benefit of the heirs, executors, administrators, legal
representatives, successors and assigns of the parties; provided however, that Guarantor may not assign or transfer any of its interests or rights hereunder without Lender’s prior written consent. Guarantor acknowledges that Lender has the
right to sell, assign, transfer, negotiate or grant participations in all or any part of, or any interest in, the Note Indebtedness and any obligations with respect thereto, including this Guaranty. In connection therewith, Lender may disclose all
documents and information which Lender now has or hereafter acquires relating to Guarantor and/or this Guaranty, whether furnished by Borrower, Guarantor or otherwise. Guarantor further agrees that Lender may disclose such documents and information
to Borrower. 

 11. AMENDMENT. This Guaranty may be amended or modified only in writing signed by Lender and
Guarantor. 
 12. APPLICATION OF SINGULAR AND PLURAL. In all cases where there is but a single Borrower, then all words used herein in the
plural shall be deemed to have been used in the singular where the context and construction so require; and when there is more than one Borrower named herein, or when this Guaranty is executed by more than one Guarantor, the word
“Borrowers” and the word “Guarantor” respectively shall mean all or any one or more of them as the context requires. 

13. COUNTERPARTS; GOVERNING LAW. This Guaranty may be executed in as many counterparts as may be required to reflect all parties assent; all
counterparts will collectively constitute a single agreement. This Guaranty shall be governed by and construed in accordance with the laws of Florida, but giving effect to federal laws applicable to national banks, without reference to the conflicts
of law or choice of law principles thereof. 
 14. GUARANTOR’S WAIVERS. 

(a) Guarantor waives any right to require Lender to: (i) proceed against any the Borrower or any other person; (ii) marshal assets
or proceed against or exhaust any security held from the Borrower or any other person; (iii) give notice of the terms, time and place of any public or private sale or other disposition of personal property security held from the Borrower or any
other person; (iv) take any other action or pursue any other remedy in Lender’s power; or (v) make any presentment or demand for performance, or give any notices of any kind, including, without limitation, any notice of
nonperformance, protest, notice of protest or notice of dishonor, notice of intention to accelerate or notice of acceleration hereunder or in connection with any obligations or evidences of Indebtedness held by Lender as security for or which
constitute in whole or in part the Note Indebtedness guaranteed hereunder, or in connection with the creation of new or additional Note Indebtedness; or (vi) set off against the Note Indebtedness the fair value of any real or personal property
given as collateral for the Note Indebtedness (whether such right of setoff arises under statute or otherwise). In addition to the foregoing, Guarantor specifically waives any statutory right it might have to require Lender to proceed against
Borrower or any collateral that secures the Note Indebtedness. 
 (b) Guarantor waives any defense to its obligations hereunder based upon
or arising by reason of: (i) any disability or other defense of the Borrower or any other person; (ii) the cessation or limitation from any cause whatsoever, other than payment in full, of the Note Indebtedness of the Borrower or any other
person; (iii) any lack of authority of any officer, director, partner, agent or any other person acting or purporting to act on behalf of the Borrower which is a corporation, partnership or other type of entity, or any defect in the formation
of any such Borrower; (iv) the application by the Borrower of the proceeds of the Note Indebtedness for 

 
purposes other than the purposes represented by Borrower to, or intended or understood by, Lender or Guarantor; (v) any act or omission by Lender which directly or indirectly results in or
aids the discharge of the Borrower or any portion of the Note Indebtedness by operation of law or otherwise, or which in any way impairs or suspends any rights or remedies of Lender against the Borrower; (vi) any impairment of the value of any
interest in security for the Note Indebtedness or any portion thereof, including without limitation, the failure to obtain or maintain perfection or recordation of any interest in any such security, the release of any such security without
substitution, and/or the failure to preserve the value of, or to comply with applicable law in disposing of, any such security; (vii) any modification of the Note Indebtedness, in any form whatsoever, including without limitation the renewal,
extension, acceleration or other change in time for payment of, or other change in the terms of, the Note Indebtedness or any portion thereof, including increase or decrease of the rate of interest thereon; or (viii) or any requirement that
Lender give any notice of acceptance of this Guaranty. Until all Note Indebtedness shall have been paid in full, Guarantor shall have no right of subrogation, and Guarantor waives any right to enforce any remedy which Lender now has or may hereafter
have against the Borrower or any other person and waives any benefit of, or any right to participate in, any security now or hereafter held by Lender. To the fullest extent permitted by applicable law, Guarantor waives all rights of a surety and the
benefits of any applicable suretyship law, statute or regulation, and without limiting any of the waivers set forth herein, Guarantor further waives any other fact or event that, in the absence of this provision, would or might constitute or afford
a legal or equitable discharge or release of or defense to Borrower. 
 (c) Guarantor further waives all rights and defenses Guarantor may
have arising out of (i) any election of remedies by Lender, even though that election of remedies, such as a non-judicial foreclosure with respect to any security for any portion of the Note Indebtedness,
destroys Guarantor’s rights of subrogation or Guarantor’s rights to proceed against the Borrower for reimbursement, or (ii) any loss of rights Guarantor may suffer by reason of any rights, powers or remedies of the Borrower in
connection with any anti-deficiency laws or any other laws limiting, qualifying or discharging the Note Indebtedness, whether by operation of law or otherwise, including any rights Guarantor may have to claim a fair market credit with respect to a
deficiency or have a fair market value hearing to determine the size of a deficiency following any foreclosure sale or other disposition of any real property security for any portion of the Note Indebtedness, and Guarantor waives any right Guarantor
may have under any “one-action” rule. Guarantor further waives the benefit of any homestead, exemption or other similar laws. 

15. UNDERSTANDING WITH RESPECT TO WAIVERS; SEVERABILITY OF PROVISIONS. Guarantor warrants and agrees that each of the waivers set forth herein is made with
Guarantor’s full knowledge of its significance and consequences, and that under the circumstances, the waivers are reasonable and not contrary to public policy or law. If any waiver or other provision of this Guaranty shall be held to be
prohibited by or invalid under applicable public policy or law, such waiver or other provision shall be ineffective only to the extent of such prohibition or invalidity, without invalidating the remainder of such waiver or other provision or any
remaining provisions of this Guaranty. 
 [Signatures follow] 

 IN WITNESS WHEREOF, the undersigned Guarantor has executed this Guaranty as of the date set
forth above. 
  

			
	SEASTAR MEDICAL HOLDING CORPORATION
		
	By:	 	 /s/ Eric Schlorff

	Name: Eric Schlorff
	Its: Chief Executive Officer

 [Signature Page to Guaranty]EX-10.19

 Exhibit 10.19 

THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS AND NEITHER THIS NOTE NOR ANY INTEREST HEREIN MAY
BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH ACT AND SUCH LAWS, OR AN EXEMPTION FROM REGISTRATION UNDER SUCH ACT AND SUCH LAWS WHICH, IN THE OPINION OF LEGAL
COUNSEL IN FORM AND SUBSTANCE ACCEPTABLE TO MAKER, IS AVAILABLE. 
 CONSOLIDATED AMENDED AND RESTATED PROMISSORY NOTE 

 

			
	Principal Amount: $2,785,000.00	  	 Issuance Date: October 28, 2022

 FOR VALUE RECEIVED, SeaStar Medical Holding Corporation, a Delaware corporation
(“Maker”), promises to pay to the order of LMFAO Sponsor, LLC, a Florida limited liability company, or its successors and assigns (“Payee”), the principal sum of Two Million Seven
Hundred and Eighty-Five Thousand U.S. Dollars ($2,785,000.00), with interest thereon as set forth herein, in accordance with the terms and conditions of this Promissory Note (this “Note”). 

This Note consolidates, amends, restates and supersedes in their entirety, and is given as a replacement for, and not in satisfaction of or as
a novation with respect to (i) that certain Promissory Note, dated July 29, 2022, made by Maker (formerly known as LMF Acquisition Opportunities, Inc.) in favor of Payee in the original principal amount of $1,035,000 and (ii) that
certain Amended and Restated Promissory Note, dated July 28, 2022 (but effective June 30, 2022), made by Maker (formerly known as LMF Acquisition Opportunities, Inc.) in favor of Payee, in the original principal amount of $1,750,000. 

1. Interest. Simple interest shall accrue on the outstanding principal amount hereof from the issuance date of
this Note until paid in full at a per annum rate equal to Seven Percent (7.0%) (or, if less, the maximum interest rate allowed by applicable law), subject to Section 9 hereof. Interest shall be computed on the basis of a 365-day year, counting the actual number of days elapsed. Any payment by Maker of any interest amount in excess of that permitted by applicable law shall be applied to the principal of this Note without prepayment
premium or penalty. 
 2. Repayment. The principal amount hereof, together with all accrued and unpaid interest thereon and
all other amounts owing from Maker to Payee hereunder, shall be due and payable on October 30, 2023 (the “Maturity Date”), subject to Section 3 and Section 9 hereof.
All payments on this Note shall be made by check or wire transfer of immediately available funds to such account as Payee may from time to time designate by written notice in accordance with the provisions of this Note. This Note may be prepaid at
any time by Maker without prepayment premium or penalty. Whenever any payment to be made hereunder shall be due on a day that is not a Business Day (as defined below), such payment shall be due on the next succeeding Business Day. 

3. Mandatory Prepayment. Notwithstanding Section 2 above, in the event that Maker shall receive any cash proceeds from a
debt or equity financing transaction (including, for the avoidance of doubt, as a result of any prepaid forward agreements or upon consummation of any equity or debt financing(s)) prior to the Maturity Date, (each, a “Future Cash
Payment”), then Maker shall be required to prepay the indebtedness evidenced by this Note in an amount equal to Twenty Percent (20%) of the gross amount of such Future Cash Payment within three (3) Business Day of the payment
thereof. However, the preceding sentence shall not apply to the first Five Hundred Thousand Dollars ($500,000) of Future Cash Payments received by Maker (the “Exempt Future Cash Payment”). For the avoidance of doubt, the
Exempt Future Cash Payment reflects the total aggregate dollar amount that is exempt from the provisions of this Section 3 and does not represent a per transaction exemption. 

  
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 4. Application of Payments. All payments received by Payee from Maker
hereunder shall be applied in the following priority: first, to the payment of any expenses due to Payee pursuant to the terms of this Note; second, to the payment of interest accrued and unpaid on this Note; and thereafter, to the payment of the
principal amount hereof. 
 5. [Intentionally Left Blank] 

6. Representations and Warranties. Maker hereby represents and warrants to Payee as of the date hereof as follows: 

(a) Maker is a corporation duly formed, validly existing and in good standing under the laws of the state of Delaware and has the requisite
power and authority, and the legal right, to own, lease and operate its properties and assets and to conduct its business as it is now being conducted; 

(b) Other than SeaStar Medical, Inc., a Delaware corporation, Maker does not have any direct or indirect subsidiaries and Maker does not hold,
directly or indirectly, any equity securities or other interests in any other person; 
 (c) Maker has the power and authority, and the
legal right, to execute and deliver this Note and to perform its obligations hereunder; 
 (d) the execution and delivery of this Note by
Maker and the performance of its obligations hereunder have been duly authorized by all necessary action in accordance with all applicable laws; 

(e) Maker has duly executed and delivered this Note; 

(f) no consent or authorization of, filing with, notice to or other act by, or in respect of, any person, including any governmental
authority, is required in order for Maker to execute, deliver, or perform any of its obligations under this Note; and 
 (g) the Note is a
valid, legal and binding obligation of Maker, enforceable against Maker in accordance with its terms. 
 7. Affirmative
Covenants. Until all amounts outstanding under this Note have been paid in full, Maker shall: 
 (a) (i) preserve, renew and maintain in
full force and effect its corporate or organizational existence, and (ii) take all reasonable action to maintain all rights, privileges and franchises necessary or desirable in the normal conduct of its business; 

(b) comply in all material respects with (i) all of the terms and provisions of its organizational documents, (ii) its obligations
under its contracts and agreement (except as otherwise provided in Section 8 below or otherwise in contravention of the provisions of this Note); and (iii) all laws of applicable to it and its business; 

  
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 (c) pay, discharge or otherwise satisfy at or before maturity or before they become
delinquent, as the case may be, all its material obligations of whatever nature (except as otherwise provided in Section 8 below or otherwise in contravention of the provisions of this Note); 

(d) provide written notice to Payee immediately upon its receipt of notice of the same, of all material actions, suits and proceedings before
any court or governmental entity, to which Maker is subject; 
 (e) as soon as possible, and in any event within two (2) Business Days
after it becomes aware that an Event of Default has occurred, notify Payee in writing of the nature and extent of such Event of Default and the action, if any, it has taken or proposes to take with respect to such Event of Default; and 

(f) upon the request of Payee, promptly execute and deliver such further instruments and do or cause to be done such further acts as may be
reasonably necessary or advisable to carry out the intent and purposes of this Note. 
 8. Negative Covenants. Until
all amounts outstanding under this Note have been paid in full, Maker, without the prior written consent of Payee (which may be withheld, delayed or conditioned in Payee’s sole discretion), shall not: 

(a) incur, create, assume or suffer to exist any lien, mortgage, pledge, security interest, claim, encumbrance, charge or restrictions of any
kind on any assets of Maker; 
 (b) incur, create or assume any Debt that is senior to this Note; 

(c) merge or consolidate into another entity; 

(d) assign, sell, convey, dispose of or otherwise transfer any material assets of Maker or any beneficial interest therein; 

(e) make any distributions to its stockholders; 

(f) acquire, directly or indirectly, any equity securities, other interests or businesses of any other person; 

(g) engage in any material transaction outside of the ordinary course of its business; 

(h) enter into, amend or waive any material right under any material agreement or contract to which Maker is a party; 

(i) materially amend its organizational documents; or 

(j) materially alter the nature or focus of its business. 

“Debt” shall mean, at any time, all obligations of Maker: (i) for borrowed money or with respect to deposits or advances of any
kind, other than deposits or advances received by Maker for services to be rendered or goods to be sold in the ordinary course of business, (ii) evidenced by bonds, debentures, notes or other similar instruments, (iii) for the deferred
purchase price of property or services, except accounts payable arising in the ordinary course of business, (iv) under conditional sale or other title retention agreements relating to property purchased by Maker, except those incurred in the
ordinary course of business, (v) with respect to interest rate or currency protection agreements, (vi) under a lease that is required to be capitalized for financial reporting purposes in accordance with U.S. generally accepted accounting
principles, (vii) for the face amount of all letters of credit and all drafts drawn thereunder; (viii) as an account party in respect of bankers’ acceptances, (ix) relating to the obligations of any other person that are secured
by property or assets of Maker; or (x) relating to any guarantee issued by Maker. 

  
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 9. Events of Default. The occurrence of any of the following events shall
constitute an “Event of Default” by Maker under this Note: 
 (a) any representation or warranty made or deemed made by
Maker to Payee herein is incorrect in any material respect on the date as of which such representation or warranty was made or deemed made; 

(b) Maker fails to timely make any payment of principal due hereunder; 

(c) Maker fails to timely make any payment of interest due hereunder, and such failure remains uncured for a period of five (5) Business
Days beyond the occurrence of such failure; 
 (d) Maker fails to observe or perform any other covenant, obligation, condition or agreement
contained in this Note, and such failure remains uncured for a period of thirty (30) days (i) beyond the occurrence of such failure in the event that such failure is material and cannot have been reasonably known to the Payee and no notice was
given to the Payee or (ii) if timely notice shall have been given to the Payee in accordance with the terms herein, after written notice to Payee; 

(e) Maker incurs, creates or assumes any Debt that is senior to this Note; 

(f) Maker asserts that the Payee’s rights provided herein are invalid or unenforceable, in whole or in part; 

(g) Maker shall make an assignment for the benefit of creditors, file a petition in bankruptcy, petition or apply to any tribunal for the
appointment of a custodian, receiver or trustee for itself or a substantial portion of its assets; 
 (h) any involuntary petition is filed
against Maker under any bankruptcy law, rule, regulation, statute or ordinance 
 (i) Maker shall commence any proceeding under any
bankruptcy, insolvency, dissolution, termination or liquidation law or statute of any jurisdiction; 
 (j) Maker is generally not, or is
unable to, or admits in writing its inability to, pay its debts as they become due; 
 (k) there shall occur any event or condition which
gives a creditor the right to accelerate or which automatically accelerates the maturity of any indebtedness of Maker; 
 (l) one or more
material judgments or decrees shall be entered against Maker and all of such judgments or decrees shall not have been vacated, discharged, stayed or bonded pending appeal within thirty (30) days from the entry thereof; or 

(m) [Intentionally Omitted]. 

  
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 From and after the occurrence of an Event of Default, (i) the unpaid principal balance of this Note and
all interest thereon shall be immediately due and payable, and (ii) interest thereon shall accrue at the rate of Fifteen Percent (15%) per annum. The rights and remedies of Payee under this Section shall be cumulative and shall be in addition
to any other rights and remedies that Payee may have under any other agreement, or at law or in equity. 
 10.
Waivers. Maker waives presentment for payment, demand, notice of dishonor, protest, and notice of protest with regard to this 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 or personal property that may be levied upon pursuant to a judgment obtained by virtue hereof, on any
writ of execution issued hereon, may be sold upon any such writ in whole or in part in any order desired by Payee. 
 11.
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. 
 12. Notices. All notices, statements, documents or other communications required or
contemplated to be delivered hereunder shall be in writing and: (i) delivered personally or sent by first class registered or certified mail or overnight courier service to the applicable address(es) provided below; (ii) sent by facsimile
to the applicable number(s) provided below, with confirmation of delivery received by sender; or (iii) sent by electronic mail, to the applicable electronic mail address(es) provided below, so long as no indication of delivery failure is
received by sender. All such communications so transmitted shall be deemed to have been given: (x) on the day of delivery, if delivered personally; (y) on the third Business Day following sending, if sent by first class registered or
certified mail; or (z) on the Business Day following sending, if sent by overnight courier service, or by facsimile with confirmation of delivery received, or by electronic mail with no indication of delivery failure received. The parties’
contact information is as follows: 
  

			
	 If to Payee, to:
  

LMFAO Sponsor, LLC
 1200 West Platt Street, Suite 100

Tampa, FL 33606
 Attn: Bruce M. Rodgers

Email: bruce@lmfunding.com
	  	 with a copy (which shall not constitute notice) to:
  

Foley & Lardner LLP
 100 N. Tampa Street, Suite 2700

Tampa, FL 33602
 Attn: Curt Creely

Email: ccreely@foley.com

  

			
	 If to Maker, to:
  

SeaStar Medical Holding Corporation
 3513 Brighton Blvd., Suite
410
 Denver, CO 80216
  

Attn:_____________
 Fax:______________

Email: ____________
	  	with a copy (which shall not constitute notice) to:

  
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 13. Governing Law and Jurisdiction. This Note is governed by and construed in
accordance with the internal laws of the State of New York, without regard to conflicts of law principles. Maker hereby irrevocably and unconditionally (i) agrees that any legal action, suit or proceeding arising out of or relating to this Note
may be brought by Payee in a state or federal court located in the State of New York, and (ii) submits to the exclusive jurisdiction of any such court in any such action, suit or proceeding. Final judgment against Maker in any action, suit or
proceeding shall be conclusive and may be enforced in any other jurisdiction by suit on the judgment. Nothing in this paragraph shall affect the right of Payee to (i) commence legal proceedings or otherwise sue Maker in any other court having
jurisdiction over Maker, or (ii) serve process upon Maker in any manner authorized by the laws of any such jurisdiction. Maker irrevocably and unconditionally waives, to the fullest extent permitted by applicable law, any objection that it may
now or hereafter have to the laying of venue of any action or proceeding arising out of or relating to this Note in any court referred to in this paragraph and the defense of an inconvenient forum to the maintenance of such action or proceeding in
any such court. MAKER HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY RELATING TO THIS NOTE OR THE TRANSACTIONS CONTEMPLATED HEREBY
WHETHER BASED ON CONTRACT, TORT OR ANY OTHER THEORY. 
 14. Severability; Usury Laws. If any provision of this Note or the
application of any such provision to any person or circumstance shall be held invalid, illegal or unenforceable in any respect by a court of competent jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provision
hereof. Any invalid, illegal or unenforceable term will be deemed to be void and of no force and effect only to the minimum extent necessary to bring such term within the provisions of applicable law and such term, as so modified, and the balance of
this Note will then be fully enforceable. The parties will substitute for any invalid, illegal or unenforceable provision a suitable and equitable provision that carries out, so far as may be valid, legal and enforceable, the intent and purpose of
such invalid, illegal or unenforceable provision. This Note is subject to the express condition that at no time shall Maker be obligated or required to pay interest on the principal balance at a rate which could subject Maker or Payee to either
civil or criminal liability as a result of being in excess of the maximum rate which Maker is permitted by law to contract or agree to pay. If by the terms of this Note, Maker is at any time required or obligated to pay interest on the principal
balance at a rate in excess of such maximum rate, the rate of interest under this Note shall be deemed to be immediately reduced to such maximum rate and interest payable hereunder shall be computed at such maximum rate. 

15. Loss, Theft, Destruction or Mutilation of Note. Upon receipt of notice to Maker of the loss, theft, destruction or
mutilation of this Note, and, in the case of any such loss, theft or destruction, upon receipt of an affidavit of loss from Payee to Maker, Maker shall issue a new Note to Payee with identical terms as this Note in replacement of this Note. 

16. Extension of Time. No extension of time for payment of any amounts due under this Note nor any waiver of any
provision of this Note shall release, modify or otherwise affect Maker’s liability for the payments due under this Note. 
 17.
Further Assurances. Promptly upon the request of Payee, Maker shall do, execute, acknowledge, deliver, record, file and register any and all such further acts, deeds, mortgages, assignments, financing statements and continuations thereof,
certificates, assurances and other instruments as Payee, may reasonably require from time to time in order to (A) carry out more effectively the purposes of this Note, (B) maintain the priority of Payee’s rights hereunder, and
(C) assure, convey, grant, assign, transfer, preserve, protect and confirm more effectively unto Payee, the rights granted or now or hereafter intended to be granted to Payee under this Note or under any other instruments executed in connection
with this Note. 

  
 6 

 18. Reasonable Expenses. Maker shall reimburse Payee on demand for all
reasonable costs, expenses and fees (including the reasonable expenses and fees of its counsel) incurred by Payee in connection with the transactions contemplated hereby including the negotiation, documentation and execution of this Note and the
enforcement of Payee’s rights hereunder. 
 19. Entire Agreement. This Note constitutes the entire agreement of
the parties with respect to the matters set forth herein. All prior agreements, understanding and arrangements among the parties with respect to the subject matter hereof are hereby superseded by this Note and of no further force or effect. 

20. No Strict Construction. This Note has been reviewed by the parties and is being entered into among competent persons, who
are experienced in business. In the event an ambiguity or question of intent or interpretation arises, this Note shall be construed as if drafted jointly by the parties, and no presumption or burden of proof shall arise favoring or disfavoring any
party by virtue of the authorship of any of the provisions of this Note. 
 21. Assignment. This Note and the rights and
obligations hereunder may not be assigned or delegated, in whole or in part, by Maker except with the prior written consent of Payee (which may be withheld, delayed or conditioned in Payee’s sole discretion). Subject to the foregoing, this Note
shall inure to the benefit of and be binding upon the heirs, successors and permitted assigns of Maker and Payee. This Note is for the sole benefit of the parties and their heirs, successors and permitted assigns. 

22. No Third-Party Beneficiaries. Except as provided in Section 21, this Note is for the sole benefit of the parties hereto
and nothing herein, express or implied, is intended to or shall confer upon any other person any legal or equitable right, benefit or remedy of any nature whatsoever under or by reason of this Note. 

23. Amendment; Waiver. Any amendment hereto or waiver of any provision hereof may be made with, and only with, the written
consent of Maker and Payee. 
 24. Counterparts; Facsimile Signatures. This Note may be executed in multiple counterparts,
including by facsimile, pdf or other electronic document transmission, each of which shall be deemed an original and all of which together shall constitute one and the same instrument. 

25. Certain Definitions. 

“Business Day” means any day other than (i) a Saturday or a Sunday, (ii) a day on which the Fedwire Funds
Service, operated by the United States Federal Reserve Banks, is closed or (iii) a day on which banks are authorized or required to close in New York, NY. 

{Remainder of Page Intentionally Left Blank; Signature Page Follows} 

  
 7 

 IN WITNESS WHEREOF, the undersigned Maker has caused this Consolidated Amended and
Restated Promissory Note to be duly executed and delivered as of the date first set forth above. 
  

			
	SEASTAR MEDICAL HOLDING CORPORATION
		
	By:	 	 /s/ Eric Schlorff

	Name:	 	Eric Schlorff
	Title:	 	Chief Executive Officer

 Acknowledged and agreed as of the date first set forth above: 

LMFAO SPONSOR, LLC 
  

			
	By:	 	 /s/ Richard Russell

	Name:	 	Richard Russell
	Title:	 	Chief Financial Officer

  
 8

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