Mass. Gen. Laws ch. 223A § 5 : COURTS, JUDICIAL OFFICERS AND PROCEEDINGS IN CIVIL CASES — ACTIONS AND PROCEEDINGS THEREIN — JURISDICTION OF COURTS OF THE COMMONWEALTH OVER PERSONS IN OTHER STATES AND COUNTRIES — Forum non conveniens TEXT PDF When the court finds that in the interest of substantial justice the action should be heard in another forum, the court may stay or dismiss the action in whole or in part on any conditions that may be just. Mass. Gen. Laws ch. 223A, § 5