An Illinois purchase agreement is a standard contract for selling real estate from one party to another. Writing a personalized offer letter may be one way for buyers to help stand out in a competive situation.I'd like to hear comments on how to make my offer more attractive. These forms are also available in the DotLoop and DocuSign form libraries. The Offer to Purchase Real Estate Form is a legal document used in Chicago, Illinois for buyers to make an offer to purchase a property. What is the legal address? Used to request issuance of a deed when property is being transferred out of the trust. Facsimile Assignment of Beneficial Interest. It should include details about the agreement and a projected date for completing and signing the purchase agreement. 1) Why is the seller selling the house?