Claassen Marrs, P.C. Share: Legal ServicesAttorneys Claassen Marrs, P.C. Visit Website Request Info 111 Deerwood Road, Suite 200 San Ramon, CA 94583 925-490-9083 About Rep Info Map About Civil Litigation and Estate Planning firm with offices in Walnut Creek and San Ramon. Whom to Contact Jerald Marrs Phone: 925-490-9083 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.