Marv first worked with the military after being drafted into the Army during the Vietnam War. After becoming a counselor in the military, Marv moved into crisis intervention work with adolescents and their families. Later he developed a family counseling agency. He also worked with foster and group homes, and a youth work program. Since then, he has worked for county mental health agencies and been in private practice. His current private practice involves working with veterans and their families. Marv works with individuals, couples, and groups, and does mediation and hypnosis. He has specialized in chronic mental health issues (severe depression, anxiety, obsessive–compulsive disorder, PTSD, to list some). Marv says he is still reading research, but most of what he knows is what he learned by listening to those who have blessed him with sharing their life stories.