The purchaser must submit: • Application for Vehicle Title and Registration (if applicable) and appropriate fee. Use our EasyForm to fill out a letter to the repossession company to demand your property.Learn more about Illinois' repossession laws, what Illinois repo agents can and cannot do, and what happens after the car is taken away. Fill out and mail a Request for Return of Personal Property Left Inside Repossessed Car to the creditor. Car Repossession Notice Requirements in Illinois. Notification is not required. In Illinois, creditors are allowed to conduct a repossession without sending a pre-repossession notice to the consumer. Edit, sign, and share illinois affidavit repossession online. No need to install software, just go to DocHub, and sign up instantly and for free. Notice of Repossession.