Ron was admitted to the California Bar in 1993, and he established the Law Offices of Ronald E. Champoux in 1997. Ron is an AV-rated attorney, and is certified by the State Bar of California Board of Legal Specialization as a Certified Family Law Specialist. He is a member of the State Bar of California (Family Law Section) and the Marin County Bar Association (Family Law Section and Probate & Estate Section).

Ron's reputation for integrity, dedicated client service and professional ethics is well recognized by his clients and by his peers in Marin County. The Marin County Bar Association has formally recognized Ron's volunteer legal services. Ron also serves on the Endowment Committee of St. John’s Episcopal Church of Petaluma.