New York Laws
Part 10 - Provisions Affecting Powers Other Than Powers of Appointment
10-10.4 - Power to Lease in Tenant for Life; Effect of Mortgage

(a) The power of a tenant for life to make leases is neither
extinguished nor suspended when such tenant executes a mortgage. The
power is bound by the mortgage in the same manner as the real property
embraced therein, and the lien of the mortgagee on such power:
(1) Entitles the mortgagee to an exercise of the power so far as the
satisfaction of the debt requires; and
(2) Causes any subsequent interest, created by the tenant for life by
an exercise of such power, to become subject to the mortgage as if in
terms embraced therein.