Repossession Affidavit. Lienholders use this form to report repossession of a vehicle or vessel.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. Next, detail the debtor's information along with the vehicle's specifics. You may be held liable for cost of repossession and attorney's fees. Avoiding a Repo When You Can't Make a Car Payment. Repo's Allowed: After 20 day "Right to Cure" letter from lienholder to debtor, repossession allowed without committing a breach of peace. Even if you successfully complete a voluntary repossession, the payments you missed on the auto loan will still appear on your credit report. Download a free blank or fillable Form TD-420-042 Repossession Affidavit - Washington in PDF and Word (docx) format.