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