Liens can be filed with the New York State DMV for all titled vehicles, boats, and manufactured homes (MFH). Middlesex County Recorder Mechanics Lien Filing.File your New Jersey Mechanics Lien in Middlesex County without any hassle. Many standard forms are available below. All forms are categorized into their respective departments. The Middlesex County Clerk's Office stands ready to assist with recordation of real property ownership and transfer, and in retrieval of information.