Mathew M. Wrenshall
On This Page
Our Awards
Overview
Mat is the Managing Partner in the Pasadena office of RMO LLP. He handles disputes over contested wills, trusts, and conservatorships in probate court as well as business disputes in a wide variety of contexts, with a focus in the financial services space. Using his lengthy experience as a litigator, Mat works closely with clients to resolve complex disputes that often involve complicated family dynamics. Mat has experience with claims relating to disinheritance, elder abuse, and undue influence, and is experienced at finding creative solutions to what are often fraught and emotional situations.
Mat graduated from Harvard University with an A.B. in History and Literature. While at Harvard, Mat was a member of the varsity swim team and was Eastern Conference champion in the 200 yard freestyle. He was also a member of the Harvard Lampoon. After working for a large private wealth manager, Mat attended the University of Pittsburgh School of Law, graduating cum laude. At Pitt, Mat served on the University of Pittsburgh Journal of Law and Commerce, and won the CALI award in Evidence.
Community & Professional Involvement
- Member, Pasadena Bar Association
- Member, LGBT Bar Association
- Member, ProVisors
- Member, Professional Fiduciary Association of California
Bar Admissions
- Member, State Bar of California
- Member, State Bar of Pennsylvania
Education
University of Pittsburgh
Juris Doctor
Harvard University
BA, History and Literature
Awards & Recognition
- Best Lawyers in America – Litigation – Trusts and Estates, Best Lawyers, 2025-2026
- “Super Lawyer”, Super Lawyers, Southern California Super Lawyers, 2023-2025
- “Top Litigator,” Los Angeles Business Journal, Leaders of Influence: Litigators & Trial Lawyers, 2024
- “Leaders of Influence: Thriving in Their 40s,” Los Angeles Business Journal, 2023
Representative Matters
- Obtained a conservatorship for a loved one to ensure that his health and well-being was being protected.
- Obtained early dismissal of claims brought against a corporate trustee in an incorrect forum.
- Secured client’s rightful inheritance after her sibling attempted to steal the estate from her through the use of fraudulent deeds obtained from the decedent while he was incapacitated and subject to undue influence
Thought Leadership
Latest News About Mathew
- News
- 1 min read
- Published on
California and Texas trust and estate litigation law firm RMO LLP is proud to announce that 3 of our partners have been included in [...]
California and Texas trust and estate litigation law firm RMO LLP is proud to announce that 3 of our partners have been included in […]
- News
- 1 min read
- Published on
Mathew M. Wrenshall, Managing Partner of RMO LLP’s Pasadena office, contributed to the Daily Journal with a column discussing the strategic use of the [...]
Mathew M. Wrenshall, Managing Partner of RMO LLP’s Pasadena office, contributed to the Daily Journal with a column discussing the strategic use of the […]
- News
- 1 min read
- Published on
National trust and estate litigation law firm RMO LLP is pleased to announce that 3 of our attorneys have been included in the 2025 [...]
National trust and estate litigation law firm RMO LLP is pleased to announce that 3 of our attorneys have been included in the 2025 […]
- News
- 2 min read
- Published on
RMO LLP Founding Partner Scott Rahn and Pasadena Managing Partner Mathew Wrenshall have been named among the Los Angeles Business Journal’s Leaders of Influence: [...]
RMO LLP Founding Partner Scott Rahn and Pasadena Managing Partner Mathew Wrenshall have been named among the Los Angeles Business Journal’s Leaders of Influence: […]
- News
- 1 min read
- Published on
Probate litigation law firm RMO LLP announced that Founding Partner Scott Rahn, Managing Partner Sean Muntz, and Pasadena Managing Partner Mathew Wrenshall have been [...]
Probate litigation law firm RMO LLP announced that Founding Partner Scott Rahn, Managing Partner Sean Muntz, and Pasadena Managing Partner Mathew Wrenshall have been […]
- News
- 2 min read
- Published on
National trust and probate estate dispute law firm, RMO LLP, announced today it has elevated senior litigation attorney Mathew Wrenshall to serve as Managing [...]
National trust and probate estate dispute law firm, RMO LLP, announced today it has elevated senior litigation attorney Mathew Wrenshall to serve as Managing […]
Speaking Engagements
Recent Updates in Probate, Trust, Estate Planning and Conservatorship
Beverly Hills Estate Planning Council
Beverly Hills, CA
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Recent Developments in Trusts and Estates
LAPA - Los Angeles Paralegal Association
Los Angeles, CA
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Latest News About Mathew
- News
- 1 min read
- Published on
California and Texas trust and estate litigation law firm RMO LLP is proud to announce that 3 of our partners have been included in [...]
California and Texas trust and estate litigation law firm RMO LLP is proud to announce that 3 of our partners have been included in […]
- News
- 1 min read
- Published on
Mathew M. Wrenshall, Managing Partner of RMO LLP’s Pasadena office, contributed to the Daily Journal with a column discussing the strategic use of the [...]
Mathew M. Wrenshall, Managing Partner of RMO LLP’s Pasadena office, contributed to the Daily Journal with a column discussing the strategic use of the […]
- News
- 1 min read
- Published on
National trust and estate litigation law firm RMO LLP is pleased to announce that 3 of our attorneys have been included in the 2025 [...]
National trust and estate litigation law firm RMO LLP is pleased to announce that 3 of our attorneys have been included in the 2025 […]
- News
- 2 min read
- Published on
RMO LLP Founding Partner Scott Rahn and Pasadena Managing Partner Mathew Wrenshall have been named among the Los Angeles Business Journal’s Leaders of Influence: [...]
RMO LLP Founding Partner Scott Rahn and Pasadena Managing Partner Mathew Wrenshall have been named among the Los Angeles Business Journal’s Leaders of Influence: […]
- News
- 1 min read
- Published on
Probate litigation law firm RMO LLP announced that Founding Partner Scott Rahn, Managing Partner Sean Muntz, and Pasadena Managing Partner Mathew Wrenshall have been [...]
Probate litigation law firm RMO LLP announced that Founding Partner Scott Rahn, Managing Partner Sean Muntz, and Pasadena Managing Partner Mathew Wrenshall have been […]
- News
- 2 min read
- Published on
National trust and probate estate dispute law firm, RMO LLP, announced today it has elevated senior litigation attorney Mathew Wrenshall to serve as Managing [...]
National trust and probate estate dispute law firm, RMO LLP, announced today it has elevated senior litigation attorney Mathew Wrenshall to serve as Managing […]
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