N.Y. Lien Law § 152: Enforcement

§ 152. Enforcement. Before enforcing such lien, notice in writing

shall be given to the customer, and to the holder of a perfected

security interest either delivered personally or sent by registered mail

to the last-known address of the customer or holder of a perfected

security interest. This notice shall state that a lien is claimed for

the damages set forth in or attached to such writing for manufacturing

or fabrication work contracted and performed for the customer. Notice to

the customer shall also include a demand for payment.