Md. Code Regs. 11.01.05.10
Any person may appeal to the Board in proper person or by an attorney admitted to practice before the Court of Appeals of Maryland, in good standing, representing the complainant. At the hearing, any party may proceed in proper person, or by the attorney. Corporations may appeal and proceed at the hearing by the attorney or by an officer of the corporation duly authorized to do so by a resolution of the board of directors of the corporation (or in a close corporation with no board of directors by the stockholders or sole stockholder in accordance with its charter) filed with the Board. Unless the resolution has been filed, the Board may not accept an appeal signed by the corporate officer or permit the corporate officer to proceed at the hearing.
Md. Code Regs. 11.01.05.10