When someone offers to help you make a down payment on a house, your lender will require a gift letter for a mortgage. Here's what it includes.My check is enclosed payable to: Library Foundation SD (or San Diego Public Library Foundation). A short letter like this sample gift letter will cover all of the requirements your lender needs. Once the buyer is pre-approved, SDHC will issue a Pre-Approval Letter valid for 60 days. As of April 22, 2021, 114 respondents had filled out the survey. The leading journal from the Royal Society of Chemistry for the publication of communications on important developments in the chemical sciences.