Exhibit 24

                            JAMES NEAL (the "Filer")
                           LIMITED POWER OF ATTORNEY

       KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and
appoints Peter McCabe, Scott Cowan and Nicholas Luciano, subject to the
expiration of this Limited Power of Attorney as set forth below, and each of
them signing singly, and with full power of substitution, as the undersigned's
true and lawful attorney-in-fact to:


   (1) execute for and on behalf of the undersigned, and submit to the U.S.
       Securities and Exchange Commission (the "SEC") a Form ID and the Form ID
       Confirming Statement, including amendments thereto, and any other
       documents necessary or appropriate to obtain codes and passwords enabling
       the undersigned to make electronic filings of a Forms 3, 4, and 5 with
       the SEC required by Section 16(a) of the Securities Exchange Act of 1934,
       as amended (the "Exchange Act") for the undersigned;
   (2) execute for and on behalf of the undersigned Forms 3, 4, and 5 in
       accordance with Section 16(a) of the Exchange Act, and the rules
       thereunder; and
   (3) take any other action of any type whatsoever in connection with the
       foregoing which, in the opinion of such attorney-in-fact, may be of
       benefit to, in the best interest of, or legally required by, the
       undersigned, it being understood that the documents executed by such
       attorney-in-fact on behalf of the undersigned pursuant to this Limited
       Power of Attorney shall be in such form and shall contain such terms and
       conditions as such attorney-in-fact may approve in such attorney-in-
       fact's discretion.

       The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this Limited Power of Attorney and
the rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is Liquidia Corporation, a Delaware
corporation (the "Company"), assuming, any responsibilities of the undersigned
to comply with Section 16(a) of the Exchange Act, or any other law, rule or
regulation whatsoever.

       This Limited Power of Attorney shall remain in full force and effect
until the earlier of (i) the time that the undersigned is no longer required to
file Forms 3, 4, and 5 with respect to the undersigned's holdings of and
transactions in securities issued by the Company, and (iii) the revocation by
the undersigned in a signed writing delivered to the foregoing attorneys-in-
fact.

IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to
be executed as of November 3, 2022.

By: /s/ James Neal
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Name: James Neal