N.Y. Lien Law § 3: Mechanic's lien on real property

§ 3. Mechanic's lien on real property. A contractor, subcontractor,

laborer, materialman, landscape gardener, nurseryman or person or

corporation selling fruit or ornamental trees, roses, shrubbery, vines

and small fruits, who performs labor or furnishes materials for the

improvement of real property with the consent or at the request of the

owner thereof, or of his agent, contractor or subcontractor, and any

trust fund to which benefits and wage supplements are due or payable for

the benefit of such laborers, shall have a lien for the principal and

interest, of the value, or the agreed price, of such labor, including

benefits and wage supplements due or payable for the benefit of any

laborer, or materials upon the real property improved or to be improved

and upon such improvement, from the time of filing a notice of such lien

as prescribed in this chapter. Where the contract for an improvement is

made with a husband or wife and the property belongs to the other or

both, the husband or wife contracting shall also be presumed to be the

agent of the other, unless such other having knowledge of the

improvement shall, within ten days after learning of the contract give

the contractor written notice of his or her refusal to consent to the

improvement. Within the meaning of the provisions of this chapter,

materials actually manufactured for but not delivered to the real

property, shall also be deemed to be materials furnished.