N.Y. Lien Law § 32

§ 32. Certain liens and claims not to be affected. The amendments\ncontained in this act shall not apply to mechanics' liens, building loan\ncontracts, mortgages, assignments and orders referred to in section\nfifteen, attachments, judgments, or to claims or liens acquired in any\naction or proceeding upon such mechanics' liens, building loan\ncontracts, mortgages, assignments and orders, attachments or judgments,\nfiled, recorded, docketed, entered or obtained, or to contracts for the\nimprovement of real property made, prior to the date when this chapter,\nas amended, takes effect.\n