Complete ONE Affidavit per crime or negative action. Utilize our affidavit of service template to attest legal documents served to a party involved in a legal proceeding.How do I fill this out? This affidavit is used to prevent them having to appear in Probate Court to testify should anything go awry. Washington Affidavit of Residence Form. Use our Affidavit of Residency form to verify your home address for official purposes. It says I have to fill out a Vehicle Title Application and have it notarized if I want to transfer a car to me name.. is this for real? Seems a bit excessive.