Maryland State Government Section 19-104

      The acknowledgment of any instrument may be made outside the United States before:

            (1)      an ambassador, minister, charge d'affaires, counselor to or secretary of a legation, consul general, consul, vice-consul, commercial attache, or consular agent of the United States accredited to the country where the acknowledgment is made;

            (2)      a notary public of the country where the acknowledgment is made; or

            (3)      a judge or clerk of a court of record of the country where the acknowledgment is made.