New York Consolidated Laws, Real Property Actions and Proceedings Law - RPA § 1102. Contents of petition

a. A description of the real property and a statement of the petitioner's interest therein and of such other facts as show that the case is within the provisions of section 1101;

b. An averment that the petitioner believes that the person upon whose life the prior estate depends is dead, together with a statement of the grounds upon which the petitioner's belief is founded.