LIMITED POWER OF ATTORNEY
                                      FOR
     John Hancock GA Mortgage Trust, John Hancock GA Senior Loan Trust and
                         Manulife Private Credit Fund

                             SECTION 16(a) FILINGS

As an officer, trustee or shareholder of John Hancock GA Mortgage Trust, John
Hancock GA Senior Loan Trust and Manulife Private Credit Fund (the "Trusts"),
the undersigned hereby constitutes and appoints with full power of substitution
each of Betsy Anne Seel, Suzanne Cartledge, Edward Macdonald, Christopher
Sechler, Daniel Beauregard and David Pemstein, acting singly, the undersigned's
true and lawful attorney-in-fact to:

   (1) Prepare and execute for the undersigned, Forms 3, 4, and 5 and
amendments thereto regarding shares of the Trusts in accordance with
Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;

   (2) File any such Form 3, 4, or 5 or amendments thereto with the United
States Securities and Exchange Commission (the "SEC") and any stock exchange or
similar authority; and

   (3) Take any other action which, in the opinion of such attorney-in-fact,
may be necessary or desirable in connection with the foregoing.

The undersigned acknowledges that neither the foregoing attorneys-in-fact nor
the Trusts are assuming the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934 and the rules thereunder.

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, unless earlier
revoked by the undersigned in a signed writing delivered to the foregoing
attorneys-in-fact. This Power of Attorney may be filed with the SEC as may be
necessary or appropriate.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 12/th/ day of September 2023.

                                                  /s/ Jason Pratt
                                                  ------------------------------
                                                  Jason Pratt