Affidavit of Motor Vehicle Gift Transfer. Here's a sample gift letter you can use to prove that the money is truly meant as an outright gift, with no expectation of repayment.Mortgage gift letters tell the lender that money for your loan came from a gift. Lenders require gift letters when necessary. 1. The exact dollar amount of the gift. The gift tax is the responsibility of the eligible person receiving the motor vehicle. In order for your contribution to be matched, please complete this form. In addition to the signed gift letter, the lender requires proof that the donor transferred the money to your account. Affidavit of Motor Vehicle Gift Transfer (Texas Comptroller of Public Accounts Form), 14-317. • Fill out the Final Decree of Divorce form and sign it.