NJSA 2A:44A-3. Lien entitlement for work, services, etc.
3. Any contractor, subcontractor or supplier who provides work, services, material or equipment pursuant to a contract, shall be entitled to a lien for the value of the work or services performed, or materials or equipment furnished in accordance with the contract and based upon the contract price, subject to the provisions of sections 9 and 10 of this act. The lien shall attach to the interest of the owner in the real property. If a tenant contracts for improvement of the real property and the contract for improvement has not been authorized in writing by the owner of a fee simple interest in the improved real property, the lien shall attach only to the leasehold interest of the tenant.
Nothing in this act shall be construed to limit the right of any claimant from pursuing any other remedy provided by law.