This form is for vehicles currently titled in Arizona. An AZ DMV notarized bill of sale is a legally recognized document used in Arizona for vehicle transactions.It's essential for transferring ownership. Outline the payment terms, including the down payment (if any), installment payments, interest rates (if applicable), and the due dates. 5. The Treasurer accepts e-Check payments through this Web site with no service fee charged to you. An Arizona motor vehicle bill of sale (ADOT Form 48-2004) is a legal document that transfers ownership of a motor vehicle from a seller to the buyer. It must include buyer and seller names, contact details, a description of the property, and transaction specifics like the date and amount paid.