Maryland State Government Section 18-105

      (a)      A notary public shall have the power to administer oaths according to law in all matters and cases of a civil nature in which a justice of the peace might have administered an oath on or before July 4, 1971, and with the same effect.

      (b)      A certificate under the notarial seal of a notary shall be sufficient evidence of the notary having administered the oath as notary public.