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  • The Sacramento County Deputy Sheriffs' Association has utilized the services of Mastagni Holstedt, A Professional Corporation for over 30 years. During my tenure as Association President there has not been one situation that the firm could not handle... Read more >

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Mastagni Holstedt, A Professional Corporation
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Northern California Location
1912 I Street
Sacramento, CA 95811
916-446-4692 Phone
916-447-4614 Fax
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Southern California Location
9327 Fairway View Place, Suite 304
Rancho Cucamonga, CA 91730
909-477-8920 Phone
Other Locations in Whittier, Chico, Stockton and San Jose

Adrian Carpenter


Adrian Carpenter joined Mastagni Holstedt, A Professional Corporation, as an associate attorney in the Labor and Employment Department. She represents public sector employees in administrative and disciplinary investigations, hearings, and critical incident investigations.

Adrian was previously a Deputy Legal Affairs Secretary for the Office of Governor Edmund G. Brown Jr. where she worked on criminal justice issues across the state of California. She previously worked as a prosecutor within the Sacramento County District Attorney’s Office, where she prosecuted offenses including DUI, assault, robbery, drug offenses, domestic violence, sex offenses, and child abuse. In addition, Adrian worked as a Deputy City Attorney in Sacramento, where she advised Labor Relations and the Sacramento Police Department. Adrian has tried over 30 jury trials and has handled multiple arbitrations and administrative hearings on behalf of her clients.

Adrian earned her J.D. from the University of San Francisco School of Law. In law school she externed at the U.S. District Court for the Eastern District and interned with the San Francisco and Alameda County District Attorney’s Offices.


  • J.D., University of San Francisco (2010)
  • M.P.A., California State University, Northridge (2006)
  • B.A., Occidental College (2004)