(a) An action in rem to enforce a ground rent shall be in accordance with the rules governing the action of mortgage foreclosure, except that for the purposes of this chapter the terms “ground rent”, “covenantor” and “covenantee” shall be substituted for the words “mortgage”, “mortgagor” and “mortgagee” in those rules.(b) Enforcement of a judgment in such action shall be in accordance with the rules governing enforcement of judgment in an action of mortgage foreclosure.