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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

Stacie Casabian


Stacie Casabian is a Labor Relations Consultant in the Labor and Employment department at Mastagni, Holstedt A.P.C. In her current role, Stacie negotiates labor agreements and represents fire personnel, police officers, police employees, probation officer, correctional officers, and civilian employees in labor relations matters.

Stacie possesses a background in county administration, management, and human resources within the public sector. In her role with county administration she gained extensive experience in negotiations, meet and confers, compensation studies, assisted with the development of the county budget; as well as creating, editing, and writing policies and personnel rules. She later moved into a role in probation where she oversaw grant funded programs, worked with the criminal court and district attorney, recruited community engagement, developed and expanded programs, and oversaw program operations. While working in probation she served as the president of her association.