An Illinois land contract documents the binding terms of the purchase and sale of vacant land between two parties. Below are forms in PDF format regarding land trusts that do not necessarily require the assistance of an attorney.These forms are now interactive. These forms are also available in the DotLoop and DocuSign form libraries. True, accurate, and complete copies of all contracts, leases and agreements referenced herein or in the Schedules hereto have been delivered to Buyer. Address. City. State. Zip. County. Permanent Index Number(s) of Real Estate: ______-______-______-______. The Real Estate is vacant and unimproved.