Marshall has been honored with No. 1 rankings by Chambers Global in Litigation (National Trial Lawyers) and by Chambers USA in Commercial Litigation, and a top ranking in Entertainment and Media Litigation. For more than 20 years, he has been listed in the Best Lawyers in America (Bet-the-Company Litigation and Commercial Litigation). For several years, including 2011, he has been listed among the “100 Most Influential Lawyers” in California by the Daily Journal. Marshall is named one of LawDragon’s 500 “Leading Lawyers in America.” Marshall is profiled as the cover story in the 2010 edition of Southern California Super Lawyers magazine. Marshall is among the few lawyers to be top ranked by Chambers in three different areas of litigation.
From 2001–2010, he served as a commissioner (and also served as chair) of the California Commission on Judicial Performance.
Having represented clients throughout the U.S. for more than 40 years, Marshall is admitted to practice in numerous state and federal courts.