D.C. Mun. Regs. tit. 1, r. 1-2810
An individual may represent himself or herself in proceedings before OAH.
Any person representing a party as permitted by this Section shall obtain the consent of the party.
A family member or domestic partner may represent a party provided that person does not accept compensation in any form.
In addition to an attorney authorized by §§ 2808, an authorized agency employee may represent an agency before OAH.
If required by law, an Administrative Law Judge shall permit a party to be represented by another person who is not an attorney.
An authorized officer, director, partner, or employee may represent a corporation, partnership, limited partnership, or other private legal entity before OAH.
An individual or any representative of any entity listed in §§ 2810.6 may represent a party if the party has or had a contractual relationship with that individual or entity that is substantially related to the subject matter of the case (such as a landlord/tenant relationship in a civil fine case or owner/property manager relationship) and that relationship existed before the case arose.
Section 2982 contains additional Rules for representation in unemployment compensation cases.
Sections 2972 and 2973 contain additional Rules for representation in public benefits cases.
Section 2935 contains additional Rules for representation in rental housing cases.
Any person authorized by the United States Tax Court to represent a party before that court may represent a party before OAH in any case arising under D.C. Official Code §§ 2-1831.03(b)(4), and on the same basis as would be permitted by the United States Tax Court.
The Chief Administrative Law Judge or presiding Administrative Law Judge may enter an order restricting the practice of any non-attorney representative appearing at OAH.
The non-attorney representative shall be given notice and opportunity to be heard either before the imposition of a restriction under §§ 2810.12, or as soon thereafter as is practicable.
An Administrative Law Judge's authority under §§ 2810.12 is limited to restricting the practice of a non-attorney representative in a pending case based on the conduct of the non-attorney representative in that case. Nothing in this Section limits the authority of the Chief Administrative Law Judge to enter a separate order restricting a non-attorney representative's practice before OAH.
D.C. Mun. Regs. tit. 1, r. 1-2810