Mastagni Holstedt, A Professional Corporation
Dennis Wallach has extensive experience in law enforcement and labor relations. Currently serving as a Senior Labor Relations Consultant and Labor Negotiator at Mastagni Holstedt, A Professional Corporation since January 2011, Wallach previously held the position of Police Sergeant at Cotati Police Department from March 1996 to January 2011. Earlier in the career, Wallach was a Police Officer at Twin Cities Police Authority from November 1993 to March 1996 and worked as a Police Officer Reserve at Cotati Police Department from February 1993 to November 1993.