D.C. Code § 29-808.03: Proper plaintiff.

A derivative action to enforce a right of a limited liability company may be maintained only by a person that is a member at the time the action is commenced and:

(1)

Was a member when the conduct giving rise to the action occurred; or

(2)

Whose status as a member was derived, by operation of law or pursuant to the terms of the operating agreement, from a person that was a member at the time the conduct giving rise to the action occurred.