How do I file a contractor (or mechanic) lien?

The Judiciary does not have any forms for these liens on its website. The procedure is set forth in N.J.S.A. 2A:44A-6 et seq. Statute books are generally available in municipal or county libraries or in law libraries. Section N.J.S.A. 2A:44A-8 has a sample notice of claim which is to be filed with the county clerk within 90 days of the date payment was due. You may also contact the county clerk’s office. That office may have a form available for you to use and may be able to give you more specific instructions. Sample forms also can be found in the New Jersey Practice series of books, available at libraries as well.