The letter must explain who is gifting the money, where the donor's funds are coming from and the relationship between the donor and the recipient. Download a gift affidavit form in PDF or Word format to attest to and record the gratuitous and voluntary transfer of a gift.You can use gifted funds to make a down payment, but your mortgage lender will want to know some details before they allow you to use it. Fill out Affidavit of Gift: You'll need to complete an Affidavit of Gift form. Pay Fees: Be prepared to cover the necessary title and registration fees. Here's what your gift letter should include: The donor's name, address and phone number. The donor's relationship to the client. Download a free Gift Deed Form for Arizona. Fill it out online and save as PDF or download the blank form in PDF or Word format. Sample of a Gift Letter Used when getting a new mortgage and getting a gift from family.