The capacity required to make or revoke a transfer on death deed is the same as the capacity required to make a will.
D.C. Code § 19-604.08
Capacity of transferor
Known as the Uniform Real Property Transfer on Death Act
The act spans §§ 19–19 (19 sections).
Mar. 19, 2013, D.C
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.