Where a power to dispose of lands is confined to a disposition by devise or will, the instrument of execution must be a will duly executed; and where a power is confined to a disposition by grant it cannot be executed by will, although the disposition is not intended to take effect until after the death of the party executing the power.
D.C. Code § 42-1018
Power to be executed by devise, will, or grant, as directed
Mar. 3, 1901, 31 Stat. 1354, ch. 854, § 1054
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.