Curious about the paperwork for selling a house without a Realtor? 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.We aren't involving agents, and I need to draft a purchase agreement. Is my best option to approach a local attorney with real estate experience? Your best bet is to contact the listing agent. When it comes to filling out a real estate purchase agreement, several key players are involved: buyers, sellers, real estate agents, and attorneys. There are standard real estate contract forms available online or even at your local office supply store. If you decide you want to buy your home without the help of a REALTOR®, the steps below outline the process you'll need to prepare to follow. In a usual real estate transaction, the buyer and sellers' agents or attorneys would be the ones involved in creating the legal contracts.