Seth is a retired attorney. He received both his B.A. and J.D. from the University of California at Davis. In 1986 he had a stroke which resulted in global aphasia. After nearly a year of speech rehabilitation, he returned to private practice with a large Sacramento law firm. A decade later he joined a non-profit organization representing persons with disabilities and later practiced in the public sector working on disability and health insurance legal matters. Seth serves on the Yolo County Commission on Aging and is involved in regional aging policy and advocacy.