The Illinois Affidavit of Agreement is a legal document that allows two parties to enter into a binding agreement in the state of Illinois. This document is typically used in real estate transactions and other business-related matters in which both parties agree to abide by certain conditions. It is also used to document the terms and conditions of a contract between two parties. There are two types of Illinois Affidavit of Agreement: the General Affidavit of Agreement and the Special Affidavit of Agreement. The General Affidavit of Agreement is used for general contractual agreements, such as a lease or a purchase agreement. The Special Affidavit of Agreement is used for more specific agreements, such as an agreement to buy or sell a specific property. Both types of Illinois Affidavit of Agreement must include the parties’ names, addresses, and signatures as well as a description of the agreement and the terms and conditions of the agreement. It must also be notarized in the presence of a notary public to be legally binding.