Maryland Family Law Section 10-304

      In a proceeding to establish, enforce, or modify a support order or to determine parentage, a tribunal of this State may exercise personal jurisdiction over a nonresident individual if:

            (1)      the individual is personally served within this State;

            (2)      the individual submits to the jurisdiction of this State by consent, by entering a general appearance, or by filing a responsive document having the effect of waiving any contest to personal jurisdiction;

            (3)      the individual resided in this State and provided prenatal expenses or support for the child;

            (4)      the child resides in this State as result of the acts or directives of the individual;

            (5)      the child may have been conceived in this State; or

            (6)      there is any other basis consistent with the constitutions of this State and the United States for the exercise of personal jurisdiction.