Respondent may appear personally or be represented by any individual of its choice. However, if the representative is not an attorney authorized to practice in the State of New York or an officer of a corporate respondent, such representative must file a written notice of appearance, signed by respondent. Requests for virtual appearances shall be granted at the discretion of the presiding officer. Any non-attorney representative who, in the sole discretion of the presiding officer, is deemed to be engaged in the unlicensed practice of law in New York State, shall be barred from participation in any administrative proceedings, and such non-attorney representative’s unlicensed practice of law may be referred to the appropriate authorities for potential enforcement action.