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. How to properly fill out the Arizona Association of Realtors Resale Purchase Contract using Dotloop.Residential Resale Transaction Forms. This particular contract dictates the purchase and sale of real estate in Phoenix and throughout the state. The Property Owner agrees to utilize the Purchase Price to carry out or cause to be carried out the exterior rehabilitation work (the "Scope of Work") on. A sales agreement is used to describe and track the exact details of quantity and cost of purchasing or selling goods, services, or real estate. A For Sale By Owner contract Arizona must include: 1. The Purchase Price, 2.