Sean Muntz

Sean D. Muntz serves as Managing Partner of RMO LLP. He 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. Mr. Muntz 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. His practice focuses on representing beneficiaries, professional and corporate fiduciaries (administrators, executors, trustees, conservators, and guardians) in contested trust, estate, and probate litigation.

Mr. Muntz 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. Prior to that, he worked as in-house counsel for a Fortune 100 aerospace manufacturer. There, Mr. Muntz represented the company in internal and external investigation and compliance matters. He 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, Mr. Muntz received a commendation from the Los Angeles Field Office of the FBI and the FBI Director. He 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. Mr. Muntz attended the University of Hawaii, where he received his BA in Journalism & Political Science. He then attended the University of Southern California Gould School of Law.

Mr. Muntz proudly supports the local community, serving as a volunteer for the Orangewood Foundation and Samueli Academy. He routinely provides thought leadership to the trust and estate community through speaking engagements at both local and national organizations. His exceptional work in the field has led to several accolades, including being named one of the "Best Lawyers in America" in Trusts and Estates by Best Lawyers; an "Orange County Visionary" by the Los Angeles Times; and a "Leader of Influence" Litigators and Trial Lawyers" by the Los Angeles Business Journal.