How to Sell a House By Owner (FSBO). These are the official forms for use in Family Court proceedings.Learn about your options, from full-service Realtor to going it alone, and all the hybrid programs available today. Have the offer and contract forms available for potential buyers. One property I sold FSBO the buyers signed a contract on the spot. 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. Get the latest apartments news, articles, videos and photos on the New York Post. The minimum requirement for preparing to list your home FSBO is to complete any state or locally required residential real estate sales disclosures.