We'll list flatfee MLS companies available for Tucson home sellers and detail their services and costs. Please fill out my quick real estate sellers request form and tell me about your property.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. Forms. Introduction. All forms are in PDF format and require a PDF viewer (such as Adobe Acrobat Reader) for viewing. All forms are fillable. 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. When transactions use real estate agents, they require the seller to complete a Seller Property Disclosure Statement (SPDS). The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as.