Washington Affidavit of Residence Form. Use our Affidavit of Residency form to verify your home address for official purposes.It typically requires your full name, address, date of birth, contact details, and residency duration. Get the forms you need to apply for, renew, or update a notary public license. Consumers can access a form to file a complaint against a notary public. A proof of residency letter is an acknowledgment or sworn statement stating that an individual resides at a specific address. Record the notarization in your notary journal or official record book. Click here to view an example of of how to complete an affidavit. For witnessing or attesting a signature: State of Washington. This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid.