§2–109.

    (a)    Except as provided in subsection (b) of this section, a judge of the court may not act as an attorney at law in a civil or criminal matter during a term of office.

    (b)    This section does not apply:

        (1)    In Harford County;

        (2)    In Montgomery County;

        (3)    In Baltimore City, to a judge of the Court while practicing law before any court of the State except an orphans’ court; or

        (4)    In Prince George’s County, Baltimore County, Calvert County, and Howard County, to a judge of the Court while practicing law in connection with a case that is:

            (i)    Outside the jurisdiction of orphans’ court; and

            (ii)    Unrelated to the administration of an estate or guardianship.