Md. Code, Insurance § 4–107

(a) On the form that the Commissioner provides, each insurer applying for a certificate of authority must appoint the Commissioner as attorney for service of process issued against the insurer in the State.

(b) The appointment:

(1) is irrevocable;

(2) binds the insurer and any successor in interest or successor to the assets and liabilities of the insurer; and

(3) remains in effect as long as there is in force in the State a contract made by the insurer or an obligation arising from a contract made by the insurer.