You can obtain the Residential Real Property Disclosure Report form from the Illinois General Assembly website. An Illinois purchase agreement is a standard contract for selling real estate from one party to another.Illinois requires those selling FSBO to fill out and file many documents and forms. NAR provides resources for working with FSBOs, including a brochure you can purchase from the REALTOR® Store. FSBO sales are not an easy process. 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. Follow the instructions below to complete Chicago realtors purchase online easily and quickly. Benefit from DocHub, the most straightforward editor.