Exhibit 5.1

April 26, 2022

BurgerFi International, Inc.

200 West Cypress Creek Road, Suite 220

Fort Lauderdale,

Florida 33309

Re: Form S-1 Registration Statement

Ladies and Gentlemen:

You have requested our opinion, as counsel to BurgerFi International, Inc., a Delaware corporation (the “Company”), with respect to certain matters in connection with the filing by the Company of a Registration Statement on Form S-1 with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended (the “Act”), as amended by Post-Effective Amendment No. 1 filed with the Commission on October 29, 2021, as amended by Amendment No. 1 to Post-Effective Amendment No. 1 filed with the Commission on November 5, 2021, as further amended by Amendment No. 2 to Post-Effective Amendment No. 1 filed with the Commission on November 23, 2021, as further amended by Post-Effective Amendment No. 2 to Form S-1 on Form S-3 filed with the Commission on January 4, 2022, as amended by Amendment No. 1 to Post-Effective Amendment No. 2 to Form S-1 on Form S-3 being filed with the Commission on the date hereof (such registration statement as so amended, the “Registration Statement”), including a related prospectus filed with the Registration Statement (the “Prospectus”), covering an aggregate of up to 38,063,901 shares of the common stock, $0.0001 par value (“Common Stock”), of the Company, which consist of: (A) 26,563,901 shares of Common Stock, registered for sale by the Selling Stockholders named in the Registration Statement (the “Subject Shares”), including (i) 5,560,377 shares issued to the owners of BurgerFi International, LLC upon the Closing of the Business Combination pursuant to the Membership Interest Purchase Agreement (including the Cash Merger Consideration and the Closing Payment Shares, with a deemed price per share of $10.60, but excluding the escrow shares identified in subsection (ii)), (ii) 943,396 shares held in escrow pursuant to the Membership Interest Purchase Agreement, (iii) up to 9,356,459 shares issuable to the Members in connection with the Earnout pursuant to the Membership Interest Purchase Agreement and (iv) 10,703,669 shares of Common Stock and shares of Common Stock issuable upon the exercise of warrants and units issued to investors in private placement offerings conducted by the Company prior to and in connection with the IPO and prior to and in connection with the Business Combination, including, but not limited to, (a) 3,000,000 shares of Common Stock and 3,000,000 shares of Common Stock issuable upon exercise of warrants issued to Lion Point and Lionheart Equities, in the aggregate, under Amended and Restated Forward Purchase Contracts that the Company entered into in connection with the Business Combination with Lion Point and Lionheart Equities, (b) 283,669 shares of Common Stock issued and outstanding as of April 27, 2021 pursuant to the cashless exercises of the Unit Purchase Option initially issued to EarlyBirdCapital, Inc. (“EarlyBirdCapital”), (c) 75,000 shares of Common Stock and 75,000 shares of Common Stock issuable upon the exercise of the warrants issuable pursuant to the exercise of the units that remain outstanding pursuant to the Unit Purchase Option initially issued to EarlyBirdCapital, (d) 2,875,000 founders’ shares issued and outstanding on the date of the IPO, (e) 445,000 shares of Common Stock and 445,000 shares of Common Stock issuable upon the exercise of warrants that are part of the 445,000 units issued in the private placement consummated at the time of the IPO, and (f) 150,000 shares of Common Stock issuable upon the exercise of working capital warrants (collectively, all the shares of Common Stock referenced in the paragraph (A) shall be referred to herein as the “Private Placement Shares” and all the warrants referenced in the paragraph (A) shall be referred to herein as the “Private Warrants”); and (B) 11,500,000 shares of Common Stock issuable upon the exercise of public warrants (the “Public Warrants”). This opinion is being issued pursuant to the requirements of the Act.

Capitalized terms used herein but not defined herein have the meaning ascribed thereto in the Registration Statement.

In connection with this opinion, we have examined and relied upon the Registration Statement, the Prospectus, the Public Warrants, the Company’s Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws, each amended to date, the Membership Interest Purchase Agreement, the IPO registration statement and the prospectus related thereto and the originals or copies certified or otherwise identified to our satisfaction of such records, documents, certificates, memoranda and other instruments as in our judgment are necessary or appropriate to enable us to render the opinion expressed below, each of which we have assumed has been fully executed. As to factual matters material to the opinion expressed herein which were not independently established or verified, we have relied, to the extent we have deemed reasonably appropriate, upon statements and representations of officers or directors of the Company.

In rendering our opinion set forth below, we have assumed that (i) each document submitted to us, including the IPO registration statement and related prospectus, is accurate and complete; (ii) each such document that is an original is authentic; (iii) each such document that is a copy conforms to an authentic original; (iv) as to matters of fact, the truthfulness, accuracy and completeness of the information, representations and warranties of the Company made in the Registration Statement and in the records, documents, instruments, certificates and statements we have reviewed; (v) all signatures (other than signatures on behalf of the Company) on each such document are genuine; (vi) the due execution and delivery of all documents (except that no such assumption is made as to the Company) where due execution and delivery are a prerequisite to the effectiveness thereof and (vii) that there has been no undisclosed waiver of any right, remedy or provision contained in such documents. We also have assumed that the parties to all agreement in which the Private Placement Shares were issued have complied with the terms thereof and that the Company has received the consideration for the issuance of those shares. We have further assumed the legal capacity of natural persons, and we have assumed that each party to the documents we have examined or relied on has the legal capacity or authority and has satisfied all legal requirements that are applicable to that party to the extent necessary to make such documents enforceable against that party. We have further assumed that the Company will not in the future issue or otherwise make unavailable so many shares of Common Stock that there are insufficient remaining authorized but unissued shares of Common Stock for issuance pursuant to exercise of the Public Warrants. We have also assumed that all of the shares of Common Stock issuable or eligible for issuance pursuant to exercise of the Public Warrants following the date hereof will be issued for not less than par value. We have not verified any of those assumptions.

On the basis of the foregoing, and in reliance thereon, we are of the opinion that (i) the Subject Shares (excluding the shares issuable upon exercise of the Private Warrants) have been validly issued, fully paid and nonassessable and (ii) the shares of Common Stock issuable upon the exercise of the Public Warrants and the Private Warrants, when exercised in accordance with the terms of such warrants, will be validly issued, fully paid and nonassessable.

We express no opinion as to matters governed by any laws other than the corporate laws of the State of Delaware and the federal securities laws of the United States of America, as in effect on the date hereof. We express no opinion to the extent that any other laws are applicable to the subject matter hereof and express no opinion and provide no assurance as to compliance with any federal or state securities law, rule or regulation.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to our firm under the caption “Legal Matters” in the Prospectus. In giving such permission, we do not admit hereby that we come within the category of persons whose consent is required under Section 7 of the Act, or the rules and regulations of the Commission thereunder. This opinion is expressed as of the date hereof, and we disclaim any undertaking to advise you of any subsequent changes in the facts stated or assumed herein or any other facts that might change the opinion expressed or of any subsequent changes in applicable law.

Sincerely,

/s/ Holland & Knight LLP

HOLLAND & KNIGHT LLP

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