The Illinois Owner/Lessee Verification affidavit is a document used to verify the ownership or leasing of a vehicle in the state of Illinois. It is typically used when a vehicle is being transferred between parties, and the new owner or lessee needs to register the vehicle with the Illinois Secretary of State. The affidavit is signed by both the seller and the new owner or lessee, and it states that the transferee is the rightful owner or lessee of the vehicle. It also includes the make, model, and year of the vehicle, as well as the vehicle identification number. There are two types of Illinois Owner/Lessee Verification affidavit: a Sale Verification Affidavit and a Lease Verification Affidavit. The Sale Verification Affidavit is used when a vehicle is being transferred between two parties as a sale. The Lease Verification Affidavit is used when a vehicle is being leased by the new owner or lessee.