Exhibit 24
POWER OF ATTORNEY
The undersigned with respect to the matters described herein, hereby
constitutes and appoints Sarah C. Doran, Mike Crow and David Zoffer each of
whom may act individually, as my true and lawful attorney-in-fact to:

(1)	Execute for and on behalf of the undersigned all forms or documents
	(collectively, the "Forms") to be filed under the Securities Exchange Act
	of 1934, as amended, and the rules thereunder (collectively, the "Exchange
	Act") with respect to transactions by the undersigned in securities issued
	by James River Group Holdings, Ltd. (the "Company"), including without
	limitation any Forms 3, 4 or 5, Form 144 or Schedule 13D, and any
	amendments to any of the foregoing;

(2)	Do and perform any and all acts for and on behalf of the undersigned that
	may be necessary or desirable to complete and execute any such Forms and
	timely file such Forms with the United States Securities and Exchange
	Commission and any stock exchange or similar authority; and

(3)	Take any other action of any type whatsoever in connection with the
	foregoing that, in the opinion of such attorney-in-fact, may be of benefit
	to, in the best interest of, or legally required by, the undersigned. The
	undersigned understands and confirms that the Forms executed by such
	attorney-in-fact on behalf of the undersigned pursuant to this 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 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 shall lawfully do or
cause to be done by virtue of this power of attorney and the rights and powers
herein granted. The undersigned acknowledges that the foregoing attorney-in-
fact, in serving in such capacity at the request of the undersigned, is not
assuming, nor is the Company assuming, and shall not be liable or responsible
for, nor shall the Company be liable or responsible for, any of the
undersigned's responsibilities to comply with the Exchange Act.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to
securities issued by the Company, unless earlier revoked with respect to any of
the attorneys-in-fact named herein by the undersigned in a signed writing
delivered to such person or persons or the Company.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 10th day of April, 2018.

/s/ Daniel Heinlein
___________________________
Name: Daniel Heinlein