Md. Code, Insurance § 15–205

(a) A policy of a foreign insurer or alien insurer that is delivered or issued for delivery in the State may contain a provision that:

(1) is not less favorable to the insured or beneficiary than the provisions of this subtitle; and

(2) is required by the law of the state or country under which the foreign insurer or alien insurer is organized.

(b) A policy of a domestic insurer that is issued for delivery in another state or country may contain a provision that is allowed or required by the laws of the other state or country.