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Our Attorneys

James W. Spertus

James W. Spertus is an experienced trial attorney and a former federal prosecutor who has been litigating cases in federal and state courts for more than 26 years.
Matthew Donald Umhofer

Matthew is a former federal prosecutor who clerked for two federal judges and handled high-profile cases at Skadden Arps before founding the Firm in 2013. He recently secured a landmark $1 billion preliminary injunction in a case he filed faulting the City and County of Los Angeles for their handling of the homelessness crisis and demanding government action to end homelessness in Los Angeles (see Matthew’s argument before the Ninth Circuit defending the preliminary injunction here ).
Ezra D. Landes

Ezra Landes handles a wide variety of civil and criminal matters, with a special emphasis on intellectual property, business disputes, and entertainment litigation. Ezra is a creative thinker and persuasive writer, who has successfully authored and argued numerous motions in state and federal court, including motions to dismiss, motions for summary judgment and special motions to strike under California’s anti-SLAPP statute.
Samuel A. Josephs

Samuel Josephs is an experienced trial and appellate lawyer who focuses on white-collar criminal matters and government enforcement actions, as well as complex civil litigation. Sam has defended individuals in matters involving securities and investment fraud, healthcare fraud, mail and wire fraud, tax fraud, money laundering, counterfeiting, false statements, and identity theft.
Dolly K. Hansen

Dolly K. Hansen is an experienced attorney whose practice includes both complex large-scale civil litigation and a wide range of criminal defense matters. Prior to joining the firm, Ms.
Elizabeth J. Lee

Elizabeth J. Lee is a civil and criminal trial attorney with extensive experience in both state and federal courts around the country. Ms. Lee has handled hundreds of state and federal criminal cases and has experience with criminal trials, preparing defense investigations, evidentiary hearings, and arguing dispositive motions.
M. Anthony Brown

Tony Brown has represented corporations, boards of directors, management, and individuals in connection with a broad range of white-collar criminal prosecutions, government investigations, enforcement actions, administrative proceedings, and internal investigations arising from whistle-blower complaints.
Kevin J. Minnick

Kevin Minnick has over a decade of litigation experience representing companies of all sizes in business disputes, government enforcement litigation, and class action cases. His vast trial and appellate experience encompasses consumer protection suits, trademark litigation, qui tam actions under the False Claims Act, and contract disputes—both affirmative and defensive—across a variety of industries including automotive, apparel, education, healthcare, and financial services.
Anthony King

Anthony King has been a civil and employment trial lawyer in federal and state courts, as well as in arbitration forums, for more than 18 years on both coasts.
Christa L. Culver Wasserman

Christa Culver Wasserman is an experienced litigator who has handled massive civil and criminal cases at both the state and federal levels. She has a broad range of experience, with particular expertise in the defense of federal criminal fraud prosecutions; securities matters, as well as other cases involving the financial services sector; and regulatory matters, including cases involving the federal export control regulations.
Elizabeth Mitchell

Elizabeth Mitchell has tried dozens of civil and criminal cases in both federal and state court. Her practice focuses on complex civil litigation, spanning a wide range of substantive areas including commercial disputes, trade secret allegations, False Claims Act, legal malpractice, and civil rights litigation.
Julia L. Tuverson

Julia L. Tuverson is a former Public Defender for the County of Los Angeles who has handled thousands of criminal cases. As a trial attorney for the Public Defender’s Office, she worked in dozens of courtrooms throughout the county and represented defendants through all stages of criminal proceedings, from arraignment through trial.
Diane Bang

Diane Bang litigates complex civil and criminal cases at both the state and federal levels and has been named a 2019 and 2020 California Rising Star by Super Lawyers Magazine.
Hans Allhoff

Hans’s practice focuses on high-stakes criminal and civil matters. He has extensive experience in the representation of clients who, because of their visibility, face significant reputational and professional harm on the mere accusation that they have committed a crime or engaged in wrongdoing.
Lindsey M. Hay

Lindsey M. Hay litigates complex civil and criminal cases at both the state and federal levels. Her practice focuses on clients facing investigations brought by federal and state law enforcement agencies and regulators, and all types of civil litigation.
Payton Lyon

Since joining the Firm in 2017, Payton Lyon has developed broad experience at both the state and federal levels assisting clients in matters involving allegations of fraud, trade secret misappropriation, and RICO violations, among others.
Hannah Bogen

Since joining the Firm in 2019, Hannah Bogen has worked on a broad range of civil and criminal investigations for duty fraud, financial officer misconduct, gambling, and bribery; prepared clients for depositions regarding duty fraud and patent and trademark infringement; drafted a complaint against a major university for Title IX investigation misconduct; prepared submissions to another university to aid a student’s defense in disciplinary proceedings; and helped on a variety of civil matters concerning trade secrets theft, land-use disputes, police misconduct, and fraud.
Matthew M. Wallace

Matt Wallace litigates complex civil and criminal cases at both the state and federal levels. Prior to joining the Firm, Matt served as a Law Clerk for the Honorable Fernando M.
Melissa Rapp

Melissa Rapp joined the Firm in 2021 after graduating from the UCLA School of Law. Melissa has since gained a variety of experiences in a range of matters, including fraud, shareholder derivative claims, and internal investigations.
Kasia Penn

Kasia Penn joined the Firm in 2021 after working for several years at a large national firm where she defended corporations in high-stakes product liability and general liability cases, several of which went to trial.
Riley Smith

Riley Smith joined the Firm in 2021 after serving as a Law Clerk for the Honorable David S. Morales of the United States District Court for the Southern District of Texas.
Scott O'Halloran

Scott litigates complex civil matters in state and federal courts across the country, with experience on both the plaintiff and defense sides. Prior to joining the Firm, Scott served as a law clerk to the Honorable William Alsup of the United States District Court for the Northern District of California and as an associate at boutique litigation shops in San Diego and Pasadena.