In an FSBO transaction, it is your responsibility to draw up the contract. However, many people choose to hire a real estate lawyer to draw up the contract.Illinois requires those selling FSBO to fill out and file many documents and forms. Several of these documents are legally binding agreements. This comprehensive guide delves into the process of buying a house from a family member, covering the legal framework, advantages and disadvantages. 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. You can obtain the Residential Real Property Disclosure Report form from the Illinois General Assembly website. The purchase price for the Property is . . . . . . . . . . . . . . . . . . . . . Selling your home FSBO? 3. Describe the real estate.