D.C. Mun. Regs. tit. 1, r. 1-504
In a proceeding before the Board an individual may appear in his or her own behalf.
In a proceeding before the Board a general partner of a partnership may represent the partnership.
In a proceeding before the Board an officer of a corporation or association may represent the corporation or association if properly authorized to do so by the articles of incorporation, by-laws, or board of directors of the corporation or association.
A general partner or officer appearing pursuant to § 504.2 or § 504.3 may be required by the Board to establish his or her authority to act in that capacity.
A party appearing or having the right to appear before the Board at a hearing shall have the right to be represented by an attorney who is an active member of the District of Columbia Bar.
Whenever an attorney enters an appearance for a party other than the District, the Executive Officer shall give notice of that appearance to the Corporation Counsel.
In any case in which an appellant is represented by an attorney, the hearing committee shall not proceed with the hearing unless an Assistant Corporation Counsel appears on behalf of the District.
If it shall appear to the Board or a hearing committee that the issues or facts in a matter before it are so complex that, in the interests of justice, or of conserving time, or of facilitating the preparation of an adequate record, a party ought to be represented by an attorney, the Board or a hearing committee may urge that party to procure the services of an attorney, and may allow that party a reasonable period of time within which to do so.
No person may participate in a representative capacity in any hearing conducted by a hearing committee until he or she delivers to the Chairperson of that committee a signed written statement containing his or her name, address, telephone number, and the purpose for which, or the capacity in which, he or she desires to participate.
The written statement required by § 504.9 shall be made a part of the record.
An attorney appearing as counsel for a person participating in any hearing conducted by a hearing committee shall certify that he or she has been admitted to, and is an active member in good standing of, the District of Columbia Bar. Unless the attorney so certifies, he or she shall not be permitted to appear as counsel for a person.
Any person authorized to appear pursuant to §§ 504.1 through 504.7 may sign any paper required or permitted either by these rules or by statute or regulation to be filed with the Board or committee.
D.C. Mun. Regs. tit. 1, r. 1-504