Maryland Code, Courts and Judicial Proceedings § 6-103.3

(a) In this section, “defamation” includes invasion of privacy by false facts.

(b) A court may exercise personal jurisdiction, to the fullest extent permitted by the United States Constitution, over any person who obtains a judgment in a defamation proceeding outside the United States against any person who is a resident of this State or has assets in this State for the purpose of providing declaratory relief with respect to that person's liability for the judgment or determining whether the judgment may not be recognized under § 10-704 of this article if the Maryland resident or person who has assets in this State may have to take actions in Maryland to comply with the foreign defamation judgment.