Maryland Code, State Government § 18-209

(a) A notarial act may be performed in the State by:

(b) The signature and title of an individual performing a notarial act in the State are prima facie evidence that:

(c) The signature and title of a notarial officer listed in subsection (a) of this section conclusively establish the authority of the notarial officer to perform the notarial act.

(d) A judge of the court of the State or a magistrate appointed by a court of the State may not charge a fee to perform a notarial act.