James R Sigel

Practice Areas

James Sigel is a partner in Morrison Foerster’s Appellate and Supreme Court practice. James briefs and argues complex appeals for clients nationwide. He has particular experience in the U.S. Court of Appeals for the Ninth Circuit and in the California state appellate courts, having argued more than twenty times in those courts. James has handled appeals in many areas of law, including class actions, securities, antitrust, contracts, false advertising, and environmental regulation. James has filed over 100 briefs in federal and state appellate courts throughout the country, including the U.S. Supreme Court, the U.S. Courts of Appeals for the First, Second, Fourth, Seventh, Ninth, and D.C. Circuits, as well as the New York and California state courts.

James is an experienced appellate advocate on the west coast, where he clerked on both the Ninth Circuit and the California Supreme Court. His successful oral argument in the Ninth Circuit resulted in a victory for his client UPS in False Claims Act litigation that had been ongoing for more than a decade. His winning argument in the California Court of Appeal secured the first precedential decision on the right to a jury in actions under California’s Labor Code Private Attorneys General Act.