Other ADR processes, such as arbitration, allow the parties to choose an expert in a particular field to decide the dispute. Preserve Relationships.Call (949) 459-2111 - Adina T. Stern, APLC is dedicated to serving our clients with a range of legal services including Arbitration and Litigation cases. JAMS Orange County Mediation, Arbitration and ADR Services (Irvine, CA) 5 Park Plaza, Suite 400, Irvine, CA 92614 714-939-1300 The AAA National Roster of Arbitrators and Mediators. ADR is a group of processes such as arbitration, mediation, or negotiation, in which the parties work to resolve their dispute outside of litigation. In arbitration, a neutral third-party hears the parties' evidence after limited discovery and makes a final, binding decision enforceable in court.