He is President and co-founder of High Conflict Institute and serves as Senior Family Mediator of the National Conflict Resolution Center. He is recognized internationally as a leading expert in high-conflict personalities, particularly in family law disputes, including divorce, co-parenting, mediation, litigation, custody, and others. He is the author of several books on high-conflict personalities and personality disorders in legal disputes and the workplace, and has spoken around the world to thousands of professionals on the high-conflict topic. He is also recognized as an expert in issues such as child abuse, domestic violence, and false allegations.