N.Y. Real Property Law § 248: Effect of conveyance where property is leased

§ 248. Effect of conveyance where property is leased. An attornment to

a grantee is not requisite to the validity of a conveyance of real

property occupied by a tenant, or of the rents or profits thereof, or

any other interest therein. But the payment of rent to a grantor, by his

tenant, before notice of the conveyance, binds the grantee; and the

tenant is not liable to such grantee, before such notice, for the breach

of any condition of the lease.