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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

William P. Creger

Sacramento employment attorneys

[email protected]

William P. Creger is a Senior Associate at Mastagni Holstedt, A Professional Corporation, in the Labor and Employment Department.  Mr. Creger represents public sector employees in a variety of settings, protecting their rights during administrative investigations, critical incidents, arbitration proceedings, and civil litigation. 

Mr. Creger serves as general counsel to several public safety unions throughout California, providing general legal advice and contract negotiation and enforcement services to these entities and their members.  Mr. Creger is particularly experienced in the Peace Officers’ Procedural Bill of Rights Act, the Firefighters’ Procedural Bill of Rights Act, the Meyers-Milias-Brown Act, the National Labor Relations Act, and union certification campaigns before both state and federal Boards.  Mr. Creger is a frequent lecturer on the rights of public safety employees. 

Mr. Creger obtained his Juris Doctorate from the University of the Pacific, McGeorge School of Law where he volunteered at several legal clinics. Prior to attending law school, Mr. Creger attended the University of California at Davis where he majored in Political Science.


Mastagni Holstedt, A Professional Corporation is located in Sacramento, CA and serves clients in and around Sacramento, West Sacramento, Alameda, Albany, Benicia, Mountain View, Monterey, Petaluma, Tracy, San Mateo, San Francisco, Citrus Heights, Dixon, El Dorado, Fairfield, Folsom, Lincoln, Marysville, Vacaville, Vallejo, Amador, Auburn, Butte, Cotati, Galt, Humboldt, Lassen, Lodi, Manteca, Merced, Nevada County, Placer, San Joaquin, Yolo, Yuba Fresno, Imperial County, Lake County, Los Angeles, Tulare, Hood, Courtland, Clarksburg, Represa, Elk Grove, Rio Linda, Sacramento County and Yolo County.

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