Atty. Sean Muntz

Atty. Sean Muntz

Sean D. Muntz serves as Managing Partner of RMO LLP.

Call (424) 349-4392 Book Appointment

Profile Summary

About Sean Muntz at a glance

Sean Muntz is a trusts attorney based in Los Angeles, California, practicing at RMO LLP. Admitted to practice in California, 223549. Educated at University of Southern California (J.D., 2002). Recognitions include Best Lawyers in America — Litigation - Trusts and Estates (2026), Best Lawyers in America — Trusts and Estates (2026), and Best Lawyers in America — Awards: (2026). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Sean D. Muntz serves as Managing Partner of RMO LLP. Sean is an experienced trial and appellate lawyer, with litigation experience spanning a broad range of subject matters, including banking, general commercial, employment, probate, real estate, securities, intellectual property, maritime and environmental disputes
  • Sean has litigated matters in state and federal courts throughout California, and in alternative dispute resolution forums, including AAA and JAMS, and before the NASD/FINRA and Pacific Stock Exchange
  • Sean’s practice focuses on representing beneficiaries, professional and corporate fiduciaries (administrators, executors, trustees, conservators, and guardians) in contested trust, estate and probate litigation
  • Sean previously was a partner at an international law firm in the firm’s commercial litigation group, where he represented international financial institutions in litigation matters
  • Sean worked as in-house counsel for a Fortune 100 aerospace manufacturer
  • There, he represented the company in internal and external investigation and compliance matters
  • While there, Sean represented the company as a victim of espionage, in the criminal matter of U.S. v
  • Chung, in which the U.S
  • District Court handed down the first conviction under the Economic Espionage Act of 1996
  • For representing the company’s interests, Sean received a commendation from the Los Angeles Field Office of the FBI and the FBI Director
  • Sean also has worked for a Fortune 100 financial institution as in-house counsel, where he managed and directed national litigation strategy, overseeing hundreds of cases

Practice Areas Explained

Sean Muntz's Areas of Practice

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

Trusts

Sean Muntz is one of 104,171 trusts attorneys indexed nationally. Browse trusts 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 Los Angeles 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 Los Angeles or all attorneys in California.

Frequently Asked

Common questions about Sean Muntz

Where is Sean Muntz's law office located?
Sean Muntz's law practice is located in Los Angeles, California. The firm is RMO LLP. You can contact the office directly through this profile page.
What practice areas does Sean Muntz handle?
Sean Muntz focuses on trusts. Each practice area listed reflects experience handling cases of that type in California.
Where did Sean Muntz go to law school?
Sean Muntz earned their education at (J.D., 2002).
How can I contact Sean Muntz for a consultation?
You can contact Sean Muntz 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 Sean Muntz received?
Sean Muntz's notable recognition includes: Best Lawyers in America — Litigation - Trusts and Estates; Best Lawyers in America — Trusts and Estates; Best Lawyers in America — Awards:; Best Lawyers in America — “Legal Visionaries”, Business of Law Magazine, Los Angeles Times, 2022; Best Lawyers in America — “Leaders of Influence: Litigators and Trial Lawyers”, Los Angeles Business Journal, 2022.

Education

J.D.
University of Southern California
- 2002

Awards

Best Lawyers in America — Litigation - Trusts and Estates
- 2026
Best Lawyers in America — Trusts and Estates
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — “Legal Visionaries”, Business of Law Magazine, Los Angeles Times, 2022
- 2026
Best Lawyers in America — “Leaders of Influence: Litigators and Trial Lawyers”, Los Angeles Business Journal, 2022
- 2026
Best Lawyers in America — “Orange County Visionary”, Los Angeles Times, 2024
- 2026
Best Lawyers in America — “Super Lawyer”,
- 2026
Best Lawyers in America — Super Lawyers
- 2026
Best Lawyers in America — , Southern California Super Lawyers 2019-2025
- 2026

Bar Admissions

California, 223549

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.