Exhibit 10.28



SECOND AMENDMENT AGREEMENT



AMENDMENT AGREEMENT (“Amendment”) dated as
of December 31, 2018 to the Committed Facility Agreement dated as of March 1, 2017 between BNP Paribas Prime Brokerage International,
Ltd. (“BNPP PB”) and Broomall Funding LLC (“Customer”).



WHEREAS, BNPP PB and Customer previously entered into a Committed
Facility Agreement dated as of March 1, 2017 (as amended from time to time, the “Agreement”);



WHEREAS, the parties hereto desire to amend the Agreement as
provided herein;



NOW THEREFORE, in consideration of the mutual agreements provided
herein, the parties agree to amend the Agreement as follows:



| | 1. | Amendment to Section 6 of the Agreement (‘Scope of Committed Facility’)
| | -- | -----------------------------------------------------------------------



Section 6 of the Agreement is hereby amended by replacing
the following paragraph currently appearing at the end thereof:



“Notwithstanding the foregoing or anything to
the contrary herein, on or at any time after the occurrence of a Funding Event, BNPP PB shall have the option to terminate this
Agreement immediately upon notice. Upon termination resulting from the exercise of such option, BNPP PB shall pay to Customer a
fee equal to 50 bps on the amount of Maximum Commitment Financing. BNPP PB shall provide notice to Customer of any downgrade of
BNP Paribas’ long-term credit rating by any of Standard & Poor’s Ratings Services, Moody’s Investor Service,
Inc. or Fitch Ratings, Ltd.”



With the following paragraph:



“Notwithstanding the foregoing or anything to
the contrary herein, upon the occurrence of a Funding Event, this Agreement shall terminate and all outstanding cash financing
shall be governed in accordance with the terms of the U.S. PB Agreement. BNPP PB shall endeavor to provide prompt notice to Customer
of: (i) the occurrence of a Funding Event and (ii) any downgrade of BNP Paribas’ long-term credit rating by any of Standard
& Poor’s Ratings Services, Moody’s Investor Service, Inc. or Fitch Ratings, Ltd.”



| | 2. | Representations
| | -- | ---------------



Each party represents to the other party that all
representations contained in the Agreement are true and accurate as of the date of this Amendment and that such representations
are deemed to be given or repeated by each party, as the case may be, on the date of this Amendment, in each case, however, except
for any representation that refers to a specific date, as to which each party represents to the other party that such representation
is true and accurate as of such specific date and is deemed to be given or repeated by each party, as the case may be, as of such
specific date.



| | 3. | Miscellaneous
| | -- | -------------



| | (a) | Definitions. Capitalized terms used in this Amendment and not otherwise defined herein shall have the meanings specified
for such terms in the Agreement.
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| | (b) | Entire Agreement. The Agreement as amended and supplemented by this Amendment constitutes the entire agreement and understanding
of the parties with respect to its subject matter and supersedes all oral communications and prior writings (except as otherwise
provided herein) with respect thereto. Except as expressly set forth herein, the terms and conditions of the Agreement remain in
full force and effect.
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | (c) | Counterparts. This Amendment may be executed and delivered in counterparts (including by facsimile transmission), each
of which will be deemed an original.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------



| | (d) | Headings. The headings used in this Amendment are for convenience of reference only and are not to affect the construction
of or to be taken into consideration in interpreting this Amendment.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (e) | Governing Law. This Amendment will be governed by and construed in accordance with the laws of the State of New York
(without reference to choice of law doctrine).
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



(Signature page follows)



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IN WITNESS WHEREOFthe parties have executed this Amendment
with effect from the first date specified on the first page of this Amendment.



|BNP PARIBAS PRIME BROKERAGE INTERNATIONAL, LTD. |  | BROOMALL FUNDING LLC            
|----------------------------------------------- |  | --------------------------------
|                                                |  |                                 
|/s/ Brian Cahalan                               |  | /s/ William Goebel              
|Name: Brian Cahalan                             |  | Name: William Goebel            
|Title: Managing Director                        |  | Title:   Chief Financial Officer



|/s/ Robert Luzzo         |  | 
|------------------------ |  | 
|Name: Robert Luzzo       |  | 
|Title: Managing Director |  | 



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