In this article, we will talk about the Arizona real estate purchase agreement and mandatory disclosures that sellers must make prior to the sale. This particular contract dictates the purchase and sale of real estate in Phoenix and throughout the state.How to properly fill out the Arizona Association of Realtors Resale Purchase Contract using Dotloop. Arizona Purchase Contract Training. 1. Enter buyer's and seller's names. A For Sale By Owner contract Arizona must include: 1. The Purchase Price, 2. Here are three key elements to consider for any purchase agreement. 1) Basic Terms Who's selling the property? Theoretically, you could write an offer on a restaurant napkin but nearly all Arizona home purchase offers are written on pre-made contract forms.