An estate in fee simple may be either absolute or qualified, as to one and his heirs during an existing condition of things of uncertain duration.
D.C. Code § 42-503
Fee simple estates — Absolute or qualified
Mar. 3, 1901, 31 Stat. 1351, ch. 854, § 1013
Official source: D.C. Law Library (Council of the District of Columbia). Reproduced from public-domain District of Columbia statutes; confirm against the official source for the current text. Not legal advice.