Atty. David E. Mastagni

Atty. David E. Mastagni

David E. Mastagni, a partner in the Labor Department at Mastagni Holstedt, APC, is renowned for his focus on labor and employment law.

Sacramento Sacramento 27 yrs experience 27 year
Call (844) 504-7300 Book Appointment

Profile Summary

About David E. Mastagni at a glance

David E. Mastagni is a Partner based in Sacramento, California, practicing at Mastagni Holstedt, APC. They have 27+ years of legal experience, licensed to practice since 1999. Their practice focuses on employment. Admitted to practice in California Court of Appeals, Ninth Circuit U.S. Supreme Court (1999) and U.S. District Court, Southern, Eastern, Northern and Central Districts of California (1999). Educated at Boalt Hall, University of California, Berkeley (J.D., 1999) and University of California, Davis (B.A., 1996). Recognitions include AV Preeminent. Active member of State Bar of California American Bar Association Sacramento County Bar Association American Association for Justice. Serands clients in Sacramento, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David E. Mastagni, a partner in the Labor Department at Mastagni Holstedt, APC, is renowned for his focus on labor and employment law
  • He represents clients in trial and appellate litigation across California and federal courts
  • An experienced PORAC Legal Defense Fund panel attorney, David is admitted to practice in multiple U.S
  • District Courts in California, the Ninth Circuit Court of Appeals, and the U.S
  • Supreme Court
  • His practice focuses on public safety representatives, handling complex civil, class-action, and collective-action cases related to labor and employment law
  • David addresses claims under the Fair Labor Standards Act, the Public Safety Officers’ Procedural Bill of Rights, the California Labor Code, and the Meyers-Milias-Brown Act
  • He is adept in collective bargaining and interest arbitration
  • David has argued before the First and Third California Appellate Districts, the California Supreme Court, and the Ninth Circuit Court of Appeals, with petitions for review in the U.S
  • Supreme Court
  • A frequent lecturer on the Public Safety Officers’ Procedural Bill of Rights, labor relations, and the FLSA, David has earned the “AV Preeminent” Peer Review Rating from Martindale-Hubbell, indicating his peers rank him at the highest level of professional excellence

Practice Areas Explained

David E. Mastagni's Areas of Practice

Each practice area below reflects the types of cases David E. Mastagni handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

David E. Mastagni is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Sacramento are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Sacramento or all attorneys in California.

Frequently Asked

Common questions about David E. Mastagni

Where is David E. Mastagni's law office located?
David E. Mastagni's law practice is located in Sacramento, California. The firm is Mastagni Holstedt, APC. You can contact the office directly through this profile page.
What practice areas does David E. Mastagni handle?
David E. Mastagni focuses on employment. Each practice area listed reflects experience handling cases of that type in California.
How long has David E. Mastagni practiced law?
David E. Mastagni has 27+ years of legal experience and has been licensed since 1999.
Where did David E. Mastagni go to law school?
David E. Mastagni earned their education at (J.D., 1999); (B.A., 1996).
How can I contact David E. Mastagni for a consultation?
You can contact David E. Mastagni directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has David E. Mastagni received?
David E. Mastagni's notable recognition includes: AV Preeminent.

Practice Areas

Education

J.D.
Boalt Hall, University of California, Berkeley
- 1999
B.A.
University of California, Davis
- 1996

Awards

AV Preeminent

Bar Admissions

California Court of Appeals, Ninth Circuit U.S. Supreme Court
Admitted: 1999
U.S. District Court, Southern, Eastern, Northern and Central Districts of California
Admitted: 1999

Reviews

5.0
11 Review
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