The Daily Journal calls Anna-Rose Mathieson “one of the West Coast’s leading appellate litigators.”

Anna-Rose co-manages the firm and serves as its General Counsel.  She’s a recognized appellate expert who handles appeals in California, Oregon, and federal courts.  Anna-Rose served as a law clerk to Justice Ruth Bader Ginsburg on the U.S. Supreme Court, taught advanced appellate writing at Stanford Law School, and has been named one of the Top Women Attorneys in California three times.


Anna-Rose provides corporate clients with thoughtful, strategic advice for a wide range of high-stakes cases.

She started her career at the large law firms of Williams & Connolly and O’Melveny & Myers, then decided to join CALG’s team of appellate experts to provide the firm’s boutique service to her clients.  Her appeals have covered topics as varied as contracts, employment law, jurisdiction, antitrust, family law, products liability, and constitutional law. She understands cutting-edge intellectual property issues and handles significant copyright, trademark, and trade secret appeals. She has worked on numerous criminal cases and taught criminal law at University of Michigan Law School. And she knows how to litigate at the highest level, authoring U.S. Supreme Court petitions for certiorari and briefs on a broad range of issues.


Anna-Rose frequently assists trial counsel with critical motions and filings.

She’s a well-regarded writer who often works with trial counsel to brief important motions, advise on jury instructions, and preserve arguments for appeal.  In addition, she helps obtain appellate review of interlocutory issues before a trial court case is final, and often works closely with the firm’s writ specialists to brief high-stakes writ petitions.


She is also known for her robust amicus practice.

Anna-Rose’s amicus briefs have included an empirical examination of patent review for national health insurance companies; a policy brief for a cyber security company in a Section 230 case; a brief on behalf of Waterkeeper organizations in an admin law case; and a brief for scholars of appellate procedure in a constitutional law case. Several of Anna-Rose’s amicus briefs have received substantial news coverage, including one discussed and quoted by The Economist (see the brief here) and another discussed in The New York Times (click here for article).


Anna-Rose serves on a number of legal committees and is frequently featured in the press.

She serves on the Board of Directors of the Family Violence Appellate Project, a nonprofit that does impact appellate litigation for survivors of domestic violence, and is the immediate Past Chair/Board President of the group. She is a member of the Executive Committee of the Oregon Bar Association’s Appellate Section, the Amicus Committee of California Women Lawyers, and the California Academy of Appellate Lawyers. Anna-Rose also served for several years as the Co-Editor-in-Chief of the American Bar Association’s Appellate Practice Journal.  She appears on radio, television, panels, and podcasts to discuss breaking issues of appellate and constitutional law, and writes articles for The RecorderDaily JournalCalifornia Litigation Review, and other legal publications.


She graduated first in her class from the University of Michigan Law School.

Anna-Rose won more than a dozen awards in law school, served as Articles Editor for the Michigan Law Review, and organized the Law Review’s annual symposium. After law school she clerked for Chief Judge Michael Boudin of the U.S. Court of Appeals for the First Circuit and then for Justice Ginsburg.


Justice Ruth Bader Ginsburg

  • U.S. Supreme Court

Chief Judge Michael Boudin

  • U.S. Court of Appeals for the First Circuit
Law School

University of Michigan School of Law

  • Summa cum laude & first in class
  • Bates Scholarship
  • Clarence Darrow Fellowship
  • Articles Editor and Symposium Coordinator, Michigan Law Review


Top Women Attorneys in California (three times) Daily Journal

Super Lawyer Super Lawyers Magazine

Best Lawyer Best Lawyers Magazine

Bar Admissions


District of Columbia


U.S. Court of Appeals Third, Fifth, Ninth, Eleventh, and Federal Circuits

U.S. Supreme Court


Appellate Law

  • Certified Specialist, State Bar of California Board of Legal Specialization

Some of Anna-Rose’s cases

California Court of Appeal

Starke v. Choudhury

Prevailed in a California appeal against Bikram Choudhury, the multimillionaire founder of Bikram yoga, protecting our client’s $6 million trial court verdict for hostile work environment and retaliatory discharge claims.

U.S. Court of Appeals for the Ninth Circuit

Trader Joe's Company v. Hallatt

In a unanimous published opinion, the Ninth Circuit overturned the dismissal of Lanham Act claims brought by CALG client Trader Joe’s.

California Court of Appeal

Drulias v. 1st Century Bancshares, Inc.

Working alongside litigators from Wachtell, Lipton to represent a large investment bank, won in the California Court of Appeal’s Sixth District to defeat an appeal of a stockholder class action suit concerning whether a forum selection bylaw adopted by a Delaware corporation without explicit stockholder consent is enforceable in California.

California Supreme Court and U.S. Supreme Court

Martins Beach et. al. v. Surfrider Foundation et al.

Prevailed in a high-profile property dispute over the public’s access to beaches in California, persuading both the California Supreme Court and the U.S. Supreme Court to leave intact a California Court of Appeal decision denying technology billionaire Vinod Khosla’s effort to purchase and close off an entire California beach enjoyed by the public for nearly a century.

Publications & media appearances

See More