When selling a house in Arizona, you must: 1. Price your home competitively 2.Every real estate seller working in Arizona has a legal obligation to reveal relevant details about a residential property to prospective buyers. This form is used to record the selling price, date of sale and other required information about the sale of property. Step 2: Fill out your disclosure form(s). When selling a house as is in Arizona, you must: 1. Choose how to sell your home 2. You'll need to fill out or obtain at least 14 documents, including the purchase agreement, closing statement, and bill of sale. The most important document you will need to complete when selling your Arizona home is a sevenpage residential seller disclosure advisory. When selling a house as is in Arizona, you must: 1.