A derivative action shall be maintained only by a person that is a partner at the time the action is commenced and: (1) That was a partner when the conduct giving rise to the action occurred; or (2) Whose status as a partner devolved upon the person by operation of law or pursuant to the terms of the partnership agreement from a person that was a partner at the time of the conduct.
Proper plaintiff
D.C. Code § 29-709.03 — under Actions by Partners..
D.C. Code § 29-709.03