D.C. Code § 32-1051.12: Representation.

Any person may be represented by counsel in any proceeding under this chapter. Any party, including corporate entities, as an alternative to counsel, may be assisted by a non-attorney authorized by that party in accordance with section 2835 of Title 1 of the District of Columbia Municipal Regulations (1 DCMR § 2835), except where such representation is prohibited by law or disallowed by the administrative law judge for good cause.