Maryland State Government Section 18-113
§ 18-113.
  (a)   If a document presented for notarization does not contain a notarial certificate reflecting the taking of an oath or acknowledgment, a notary may nevertheless witness the signing of the document in the notary's official capacity, in accordance with subsection (b) of this section.
  (b)   A notary acting as a witness in the notary's official capacity under subsection (a) of this section shall:
    (1)   obtain satisfactory proof of the identity of the person signing the document;
    (2)   observe the signing of the document;
    (3)   date, sign, and seal or stamp the document; and
    (4)   record the act in the notary's fair register.