D.C. Mun. Regs. tit. 31, r. 2108
An appellant or respondent, at its own expense, may appear through an attorney or non-attorney representative.
Each representative shall file a notice of appearance at least two (2) days prior to the first scheduled hearing at which the representative expects to appear. The notice shall include the representative's full name, contact information, and, if applicable, the bar number and jurisdiction(s) of admission.
A representative shall not be heard and shall not file or serve documents, other than a request for a hearing, until a notice of appearance has been filed.
A representative may withdraw by serving and filing a notice of withdrawal upon all parties, provided that no motions are pending and no hearing has been scheduled. If a motion is pending or a hearing date has been scheduled, withdrawal shall be granted only by leave of the hearing examiner.
An attorney acting as a representative shall be in good standing in all jurisdictions where the attorney is admitted, and shall comply with the D.C. Rules of Professional Responsibility throughout the course of the representation.
Each representative shall exhibit professionalism and courtesy, and shall not mislead or make false statements to OHE.
D.C. Mun. Regs. tit. 31, r. 2108