N.Y. Estates, Powers & Trusts Law § 6-1.1 – Estates classified

(a) Estates in property as to duration are classified as follows:
1. (1) Fee simple absolute.
2. (2) Fee on condition.
3. (3) Fee on limitation.
4. (4) Estates for life.
5. (5) Estates for years.
6. (6) Estates from period to period.
7. (7) Estates at will.
8. (8) Estates by sufferance.