To affix the mobile home, fill out the top section of an Affidavit of Affixture form, and surrender your titles to an MVD agent, who will process the form. The bill of sale outlines all the agreed-upon terms of the sale, including purchase price, closing date, and more.Let's go over the process for buying a mobile home, what to include in the bill of sale and where to get an official template. How do I fill this out? All forms are fillable. You can fill it out in Reader and print it from there. Bill of Sale ; Library File Link. We provide mobile home registration services in Arizona. Our services include: Title Transfers, Lost Titles, Duplicate Titles, and much more.