Forprofit organization and world's largest provider of arbitration, mediation and other alternative dispute resolution (ADR) services. JAMS Orange County Mediation, Arbitration and ADR Services (Irvine, CA) 5 Park Plaza, Suite 400, Irvine, CA 92614 714-939-1300Dedicated Employment Attorneys. Fill out the contact form or call us at (973) 781-1204 or (646) 867-7997 to schedule your consultation. Contact the Orange County Bar Association at (949) 440-6700. Look in the telephone directories under "Arbitrators" or "Mediators". The purpose of the Orange County Bar Association Mandatory Fee Arbitration Program is to resolve fee disputes between clients and attorneys. JAMS Orange County Mediation, Arbitration and ADR Services (Irvine, CA) 5 Park Plaza, Suite 400, Irvine, CA 92614 714-939-1300 Representing Unions. Miller O'Brien Jensen has extensive experience representing our union clients in labor arbitration.