Matthew S. Manacek

  • In the news

Matthew Manacek is a litigation associate at Larson O’Brien LLP. His practice focuses on high-stakes commercial litigation, white collar litigation, and investigations. Matthew's experience includes representing plaintiffs and defendants in corporate and consumer fraud actions and assisting corporations in state and federal investigations. He has represented companies in the entertainment, financial services, and oil & gas industries.

Before joining Larson O’Brien LLP, Matthew was a summer associate at an Am Law 100 law firm in Chicago. He is a graduate of the University of Southern California Gould School of Law and DePaul University, where he graduated magna cum laude with a degree in finance. During law school, Matthew was Senior Editor of the Interdisciplinary Law Journal and interned at Ticketmaster. 

Larson O'Brien Press Release

County loses bid to dismiss Colonies lawsuits

A new ruling by a federal judge leaves San Bernardino County facing hundreds of millions of dollars in damages over the politically motivated, 20-year persecution of Larson O'Brien client Jeff Burum and his company, Colonies Partners.

Daily Journal

Developer & officials acquitted of bribery can sue

San Bernardino County, its former district attorney, and his staff can be sued by Larson O'Brien client Jeff Burum and former county officials for alleged retaliation and malicious prosecution, a federal judge ruled on July 29, 2020.

San Bernardino Sun

Judge OKs trial against San Bernardino County

A federal judge on July 29, 2020 denied a request by San Bernardino County to dismiss a lawsuit filed by Larson O'Brien client Jeff Burum alleging malicious prosecution in a nearly decade-long public corruption case that ended in his acquittal.

Larson O’Brien joins Law Firm Antiracism Alliance

The national coalition of law firms aims to create large-scale, coordinated pro bono projects that address systemic racism.

Firm joins L.A. Represents pro bono initiative

Mayor Eric Garcetti's pro bono initiative is composed of top Los Angeles law firms providing free legal services to residents facing hardships caused by the COVID-19 pandemic.


Live Nation, others cut loose from IP fight

U.S. District Judge Philip S. Gutierrez granted Live Nation's motion to dismiss producer Darryl Payne's copyright claims


    University of Southern California Gould School of Law, J.D.

    DePaul University, B.S., magna cum laude


    U.S.D.C. Central District of California
    U.S.D.C. Northern District of California