D.C. Code § 42-501
Estates in land in the District shall be estates of inheritance, estates for life, estates for years, estates at will, and estates by sufferance.
Mar. 3, 1901, 31 Stat. 1350, ch. 854, § 1011
1973 Ed., § 45-801.
1981 Ed., § 45-201.
Statute of frauds, see §§ 28-3501, 28-3503.