Arbitration, Multiple claims, Stay of judicial proceedings. Here, the parties have agreed that.Massachusetts law governs the issue of arbitration with respect to DraftKings' contracts, while. Laborers' District Council (Union) filed a unilateral petition for Arbitration. A ruling that highlights for employers the importance of providing complete and timely responses to requests for employee personnel files. 251. In the Massachusetts Federal District Court, the Standing Orders of Hon. William G. Young include referral to arbitration as an option. Documents do not require Contractor to arbitrate, neither.