Atty. Jason M. Ewert

Atty. Jason M. Ewert

Jason M. Ewert is one of the managing attorneys in the labor and employment department at Mastagni Holstedt.

Ontario Ontario 13 yrs experience 13 year
Call (909) 285-0085 Book Appointment

Profile Summary

About Jason M. Ewert at a glance

Jason M. Ewert is a Partner based in Ontario, California, practicing at Cole Huber. They have 13+ years of legal experience, licensed to practice since 2013. Their practice focuses on criminal defense, employment, and government. Admitted to practice in California (2013). Educated at Pepperdine University School of Law (J.D., 2012) and La Sierra University (B.A. Tulane, 2009). Recognitions include AV Preeminent. Serands clients in Ontario, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Jason M. Ewert is one of the managing attorneys in the labor and employment department at Mastagni Holstedt
  • His practice focuses on labor and employment law, with a specific emphasis on advising and representing public employee associations and their members
  • Jason is also an experienced PORAC Legal Defense Fund panel attorney and is admitted in all California state courts and the U.S
  • District Court for the Central District of California
  • He represents clients in disciplinary matters, grievances, critical incidents, unfair practice proceedings and civil writ proceedings
  • Jason is also a POST certified instructor and he has conducted numerous trainings concerning the California Public Records Act, Public Safety Officers’ Procedural Bill of Rights, Firefighters’ Procedural Bill of Rights Act, Meyers-Milias-Brown Act, and other statutes guaranteeing labor and employment rights to employees
  • Jason prides himself on building lasting relationships and being available to his clients during all phases of their cases
  • Prior to joining Mastagni Holstedt, Jason served as Deputy City Attorney at the City of San Bernardino where his primary assignments included advising all City departments regarding employment issues and personnel actions, and representing the City during labor negotiations with employee bargaining units
  • When not practicing law, Jason enjoys mountain biking and sailing with his wife

Practice Areas Explained

Jason M. Ewert's Areas of Practice

Each practice area below reflects the types of cases Jason M. Ewert handles, with a brief overview of what that area of law covers.

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Jason M. Ewert is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in California →

Employment Law

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

Jason M. Ewert is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in California →

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

Jason M. Ewert is one of 132,225 government attorneys indexed nationally. Browse government 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 Ontario 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 Ontario or all attorneys in California.

Frequently Asked

Common questions about Jason M. Ewert

Where is Jason M. Ewert's law office located?
Jason M. Ewert's law practice is located in Ontario, California. The firm is Cole Huber. You can contact the office directly through this profile page.
What practice areas does Jason M. Ewert handle?
Jason M. Ewert focuses on criminal defense, employment, government. Each practice area listed reflects experience handling cases of that type in California.
How long has Jason M. Ewert practiced law?
Jason M. Ewert has 13+ years of legal experience and has been licensed since 2013.
Where did Jason M. Ewert go to law school?
Jason M. Ewert earned their education at (J.D., 2012); (B.A. Tulane, 2009).
How can I contact Jason M. Ewert for a consultation?
You can contact Jason M. Ewert 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 Jason M. Ewert received?
Jason M. Ewert's notable recognition includes: AV Preeminent.

Education

J.D.
Pepperdine University School of Law
- 2012
B.A. Tulane
La Sierra University
- 2009

Awards

AV Preeminent

Bar Admissions

California
Admitted: 2013

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