New York Laws
Part 3 - Estates Classified as to Time of Enjoyment and Creation
6-3.2 - Kinds of Future Estates

(a) Future estates are divided into:
(1) Estates left in the creator, consisting of:
(A) Reversions.
(B) Possibilities of reverter.
(C) Rights of reacquisition.
(2) Estates in favor of a person other than the creator, namely
remainders, that are:
(A) Indefeasibly vested.
(B) Vested subject to open.
(C) Vested subject to complete defeasance.
(D) Subject to a condition precedent.