David H. Seidel

While at the firm, David has taken a leadership role in important antitrust cases. In Varsity All Star and Scholastic Cheer Market Price-Fixing Litigation, he is one of the lead attorneys in the firm’s representation of a class of cheer athletes and their families alleging that they paid anticompetitive prices to a cheer monopolist for cheer competitions, camps, and apparel. In 2024, parties reached a settlement agreement, which awaits the Court’s final approval. In Microsoft Acquisition of Activision Litigation, he represents a group of gamers harmed by Microsoft’s $70 billion acquisition of Activision Blizzard, seeking to stop the unlawful acquisition. Plaintiffs have asserted claims under Section 7 of the Clayton Act, which prohibits all mergers or acquisitions that may substantially reduce competition in a given market. And in Medical Center Employee No-Poach Litigation, he represents a proposed class of employees against several competitors in the outpatient medical center industry that agreed not to recruit each other’s employees. Plaintiffs allege that the agreement among employers not to compete for labor talent was per se unlawful under Section 1 of the Sherman Act, and that it reduced wages for employees. 

Prior to joining the firm, David was an associate at a large corporate law firm where he received significant litigation experience and invaluable mentorship in a broad-based practice. He successfully assisted in litigating a wide range of complex disputes in state and federal courts and in arbitration.  

David clerked for the Honorable Judge Jill A. Otake of the United States District Court for the District of Hawaii. While there, he attended and assisted with trial and oral argumengts, conducted legal research, and assisted in drafting judicial opinions on motions for summary judgment, motions to dismiss, and various other pre-trial motions. During his time in Hawaii, he developed a strong appreciation for the Aloha Spirit. 

As a law student at the George Washington University Law School, David graduated with highest honors and was an executive editor of The George Washington Law Review. He participated in mock trial competitions, winning the school’s top “Estrella” Mock Trial Competition, along with a classmate, and earning the Best Advocate award. He was also the president of the school’s American Constitution Society student chapter and was recognized as an ACS Next Generation Leader. He participated in his school’s student government and received the Pro Bono Service Recognition Award for devoting a substantial number of hours to pro bono legal work with several different organizations. 

David remains deeply committed to providing pro bono legal representation on compelling cases to those who cannot afford it. He has represented Guatemalan and Cuban refugees fleeing violence and persecution in their claims for asylum, petitioned the government for valuable benefits on behalf of a veteran suffering from PTSD due to a service-related incident, and litigated constitutional excessive force claims. In 2023, he obtained a clemency award to upgrade the discharge status of a Vietnam veteran who was court-martialed and given a Bad Conduct Discharge in 1967 for possessing a small amount of marijuana. This pro bono success was covered by the California Daily Journal. 

Since 2023, David has been selected by Super Lawyers as a "Rising Star," by Best Lawyers as “One to Watch,” and by Lawdragon for its "500 X - The Next Generation" guide. In October 2022, he and Joseph Saveri co-authored "Touhy Exposed," published in the California Daily Journal. He is a member of the American Bar Association and the Bar Association of San Francisco.