I demand that you return to me all of the personal property in the vehicle immediately. Make a list of what was in the vehicle.(See the sample letter below.) Keep a copy of your property list, demand letter, and proof of mailing. Any personal property left in the repossessed vehicle will be held for thirty (30) days from the date of the mailing of this notice. Lienholders use this form to report repossession of a vehicle or vessel. Take this completed form and a Vehicle. Please provide the following: • Agreement with your client that grants you the authority to collect on this alleged debt. It's a good idea to send a written demand for your personal property immediately, listing what was in the car when it was repossessed. If your car is repossessed, the lender must give you certain notices after the repossession and after it sells the car. First, a lender may hire a repossession agency.