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. In Utah, a small estate affidavit is not filed with the courts.Yes, your gift letter needs to be notarized. Also, both the donor needs to sign it to make it valid. In Utah, a small estate affidavit is not filed with the courts. The gift donor may not be a person or entity with an interest in the sale of the property such as the seller, real estate agent, builder, or developer. To complete the gift affidavit, put your signature, printed name, and date on the gift affidavit.