This completed form must be submitted to a county tax assessor-collector's office in addition to all other required documents at the time of title transfer. Repossession of motor vehicle or motorcycle; garageman's lien; notice to police. 1.Complete this form and bring it with the license plates, if any, to any Motor Vehicles office. How to fill out the Affidavit of Repossession for Motor Vehicle Title? Storing of motor vehicles in the unincorporated areas of Harris County at the request of a law enforcement officer. 2. Harris County Tax Office Forms. Automotive Property Tax Special Permit Taxes VoterRegistration Miscellaneous. Complete Form MVR4A properly signing in the presence of a notary. 2. Affidavit of Heirship for a Motor Vehicle (VTR-262), VTR-262. Affidavit of Motor Vehicle Gift Transfer (Texas Comptroller of Public Accounts Form), 14-317.