Ask for rent receipts showing the physical address as well as your mailing address. A rent receipt should work.You could probably have your landlord notarize and sign something that affirms you were living in the apartment for 12 full months. Fill out an official affidavit form and sign it in the presence of a notary. My state DMV provides a list of acceptable proof of residency documents. If you need a proof of residency letter, you can print this free proof of residency letter template and fill in the necessary information. Deed or title to residential real property. Please complete the entire application and sign and date the front and back of the application. A valid DC driver's license or non-driver's ID card. - A valid lease, rental agreement, rent receipt, deed, settlement papers, or mortgage statement for.