Before transitioning to appellate practice, David was a trial court litigator defending medical device and pharmaceutical companies in high-stakes product liability and mass tort litigation. He continues to work side-by-side with trial lawyers in all fields to develop litigation strategy and prepare dispositive motions, trial briefs, motions in limine, jury instructions, and post-trial motions—all geared toward maximizing success on appeal.

David has been selected to the Northern California Super Lawyers list in Appellate Law.

David is a member of the Executive Committee and Immediate Past Chair of the Appellate Section of the Bar Association of San Francisco. He is a frequent lecturer and author on appellate practice and procedure and serves on the Clinical Faculty of Stanford Law School's Trial Advocacy Program. David devotes his pro bono time to representing indigents seeking asylum.