The buyer may transfer his equity in the motor vehicle at any time to another person upon agreement by the holder, and, in such event, the holder of the contract shall be entitled to charge and collect a transfer of equity fee which shall not exceed fifteen dollars ($15.00). No transfer of equity fee shall be charged or collected unless the holder of the contract shall, in writing, release the transferor from all further liability under such contract.
Miss. Code § 63-19-37