Date: Appellant or Attorney for Appellant. The arbitration of claims can take several different forms in Pennsylvania, but can be generally categorized as either compulsory judicial arbitration.How to File a Request for Arbitration. In the event a grievance cannot be resolved, some labor contracts allow for arbitration to settle the grievance. If you would like to participate in Mediation please fill out the Agreement to mediate form along with your Request for Arbitration paperwork. If you would like to participate in Mediation please fill out the Agreement to mediate form along with your Request for Arbitration paperwork. The Unified Judicial System provides forms for citizens, the judiciary and law enforcement. The drafters of the RUAA attempted to fill in gaps in the UAA and bring state law into closer alignment with federal law.