(a.) The filing of a pleading or other appearance by an attorney constitutes his appearance for the party for whom made. The Board must be notified in writing of his withdrawal from any matter. Any person appearing before the Board at a hearing in representative capacity shall be precluded from examining or cross-examining any witness, unless such person shall be an attorney licensed to practice law in the State of Wyoming, or a non-resident attorney associated with a Wyoming attorney.
010-21 Wyo. Code R. § 21-7