Sean D. Muntz | Trust Attorney & Co-Managing Partner | RMO Lawyers
Trust and Litigations firm RMO Orange county Location
Sean D Muntz is a trust litigation attorney for trustees and beneficiaries in Costa Mesa, CA - RMO LLP

Sean D. Muntz

Managing Partner

Sean D. Muntz

Rated by Super Lawyers

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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.

AWARDS & RECOGNITION

  • Best Lawyers in America – Trusts and Estates, Best Lawyers, 2024
  • “Super Lawyer” Super Lawyers, Southern California Super Lawyers 2018-2024
  • “Leaders of Influence: Litigators and Trial Lawyers,” Los Angeles Business Journal, 2022
  • “Legal Visionaries,” Business of Law Magazine, Los Angeles Times, 2022

COMMUNITY & PROFESSIONAL INVOLVEMENT

  • Member, ProVisors

EDUCATION

University of Southern California
Juris Doctor

University of Hawaii
BA, Journalism & Political Science

BAR ADMISSIONS

  • Member, State Bar of California

APPELLATE OPINIONS

  • McCabe v. Wells Fargo Bank, N.A., Cal. Court of Appeal, Fourth Dist., Div. 2
  • Jenkins v. JPMorgan Chase Bank, N.A., Cal. Court of Appeal, Fourt Dist., Div. 2
  • Pardes v. The Boeing Company, Cal. Court of Appeal, Fourth Dist., Div. 3
  • Yun v. JPMorgan Chase Bank, N.A., Cal. Court of Appeal, Fourth Dist., Div. 3
  • Gyurec v. Deutsche Bank Nat’l. Trust Co., Cal. Court of Appeal, Fourth Dist., Div. 2
  • Welker v. JPMorgan Chase Bank, Cal. Court of Appeal, Fourth Dist., Div. 3
  • Palms & Sands Owners Ass’n., Inc. v. Bank of America, Cal. Court of Appeal, Fourth Dist., Div. 1
  • Trapp v. U.S. Bank National Ass’n., Cal. Court of Appeal, Fourth Dist., Div. 2
  • Sroka v. Bank of America, N.A., Cal. Court of Appeal, Fourth Dist., Div. 3
  • Graham v. Bank of America, N.A., Cal. Court of Appeal, Fourth Dist., Div. 1
  • Palmer v. JPMorgan Chase Bank, N.A., Cal. Court of Appeal, Fourth Dist., Div. 1
  • Sundby v. Bank of New York, Cal. Court of Appeal, Fourth Dist., Div. 1
  • Gorton v. Advantix Lending, Inc., Cal. Court of Appeal, Fourth Dist., Div. 2
  • Pedery-Edwards v. JPMorgan Chase Bank, N.A., Cal. Court of Appeal, Fourth Dist., Div. 1
  • Moore v. ReconTrust Company N.A., Cal. Court of Appeal, Fourth Dist., Div. 1
  • Steinke v. Bank of America, N.A., Cal. Court of Appeal, Fourth Dist., Div. 2
  • Rosen v. Bank of America, N.A., Cal. Court of Appeal, Fourth Dist., Div. 3
  • Jensen v. Huffman, Cal. Court of Appeal, Fourth Dist., Div. 3
  • Peralta v. Bank of America Corp., Cal. Court of Appeal, Fourth Dist., Div. 2
  • Le Beau v. Bank of America, Cal. Court of Appeal, Fourth Dist., Div. 3
  • Mabry v. Superior Court, Cal. Court of Appeal, Fourth Dist., Div. 3
  • Harris v. Bank of America, N.A., Cal. Court of Appeal, Fourth Dist., Div. 2

SEAN IN THE NEWS

Jury Awards RMO Client $3.65 Million Following Four-Day Trial

National probate litigation law firm RMO LLP announced today that it recently secured a $3.65 million jury verdict on behalf of a client who was taken advantage of by her host family who videotaped her while showering.

RMO LLP Wins Seven-Figure Judgment in Trust Contest

Probate litigation law firm RMO LLP announced today it has secured a $1.1 million trial award on behalf of its elderly client in a disputed trust contest matter.

Sean Muntz Elevated to Co-Managing Partner of RMO LLP

Probate and trust estate litigation law firm RMO LLP announced today that Partner and Practice Management Chair Sean D. Muntz has been promoted to Co-Managing Partner of the Firm…

RMO LLP’S SEAN MUNTZ, SCOTT RAHN NAMED TOP LOS ANGLES LAWYERS

published on PRNewswire 

National probate and inheritance dispute law firm, RMO LLP, announced today that CEO Scott Rahn and firm Managing Partner Sean Muntz have been recognized…

RMO LLP Taps Sean Muntz as Firm Managing Partner

published on PRNewswire

National probate and inheritance dispute law firm, RMO LLP, announced today that veteran probate trial and appellate lawyer Sean D. Muntz has been named the firm’s new Managing Partner.

RMO LLP’S SCOTT RAHN AND SEAN MUNTZ NAMED “LEGAL VISIONARIES”

published by Reuters

 National probate litigation law firm RMO LLP announced today that Founding Partners Scott Rahn and Sean Muntz have been recognized by the Los Angeles Times as ‘Legal Visionaries’ in its second annual Business of Law magazine.

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