N.Y. Lien Law § 121: Notice of lien

§ 121. Notice of lien. Such notice may be filed at any time after the

completion of the work, but must be filed within one year after the

agreed price for furnishing or placing such monument, gravestone,

inclosure or other structure becomes due, and shall state that the

lienor has a lien on such monument, gravestone, inclosure or structure

for the purchase price thereof, or some unpaid part of such purchase

price, with interest, specifying the amount agreed to be paid, and the

amount unpaid, with a description of such monument, gravestone,

inclosure or other structure, and the location of the plot upon which it

stands, and the names of the persons with whom the agreement for the

purchase and erection of the structure, or for the performance of such

labor was made. The notice shall be signed and verified by the lienor.

The lienor shall, within ten days after the filing of such notice, serve

a copy personally, or by mail, upon the person with whom the agreement

for the purchase and erection of such monument, gravestone, or other

structure, or for the performance of labor thereon was made, and upon

the owner of the lot upon which such monument, gravestone or other

structure is erected, if the name and residence of such owner can, with

reasonable diligence be ascertained.