N.Y. Gen. Mun. Law § 291
When the legislative body shall have resolved to establish a facility and programs for the elderly, it may use for such purpose real property owned by the county, town, city or village which, in its judgment, is not needed for any other public use or it may purchase or lease real property or interest or easement therein, or acquire such real property interest and easement therein by condemnation proceedings in the manner provided by the provisions of the condemnation law. The purchase price or award for the real property or interest or easement therein acquired may be paid for by appropriation of monies available therefor or may be financed, in whole or in part, pursuant to the local finance law. Real property and interests or easements therein may be acquired, pursuant to this section, for use on a determined or undetermined future date upon a determination by the local legislative body that such action is necessary in order to obtain property which is desirable because of its reasonable cost, advantageous location or any other factor recommending immediate acquisition.
N.Y. Gen. Mun. Law § 291