A For Sale By Owner contract Arizona must include: 1. The Purchase Price, 2.All foreign funds must be wire transferred in the form of U.S. Dollars. An Arizona residential purchase agreement is a legal document outlining the terms and conditions for a buyer's purchase of residential property from a seller. Find the required and recommended documents for selling your home without a realtor in Arizona, plus where to get paperwork help. Please fill out my quick real estate sellers request form and tell me about your property. Arizona requires those selling FSBO to fill out and file many documents and forms. Several of these documents are legally binding agreements. This FSBO paperwork is needed as soon as you accept an offer, so it's useful to have a purchase agreement onhand that you can fill out quickly.