A tenancy at will may be terminated by 30 days notice in writing by either landlord or tenant.
D.C. Code § 42-3203
Tenancy at will
Mar. 3, 1901, 31 Stat. 1382, ch. 854, § 1220
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.