Named one of the city’s Top 50 Litigators & Trial Lawyers by Los Angeles Business Journal, Jeff is known as a “high-powered” (Daily Journal), “top intellectual property litigator" (Variety), a “heavy hitting music lawyer” (Billboard), and among “the very best litigators in the business” (Los Angeles Business Journal). A “key figure in numerous high-stakes intellectual property fights,” he has handled “groundbreaking copyright infringement litigation” and “some of the most complex copyright cases in the entertainment industry” (Daily Journal).  He has been honored as one of the nation’s premier entertainment litigators by Variety, perennially recognized as among the top intellectual property lawyers in California by the Daily Journal, and cited as one of the nation’s foremost copyright litigators by Legal 500.  His clients have included Fortune 100 companies; all of the world’s largest record companies, music publishing companies, digital music providers, and entertainment industry trade groups; and many iconic recording artists, music producers, actors, directors, and athletes.

A “veteran of high-stakes music industry skirmishes” (Daily Journal), Jeff is “among the nation’s top music litigators” (Los Angeles Business Journal).  He has litigated hundreds of music cases involving dozens of #1 records, Grammy Award-winning artists, and members of the Rock & Roll Hall of Fame. He was awarded an Honorary Gold Record by the Recording Industry Association of America for his success in the seminal Napster case, and led Universal Music Group’s defense in a digital music class action that the Hollywood Reporter called an “important chapter in the legal history of the music business.”

Jeff has litigated cases against the world’s largest airline, search engine, toy company, e-commerce retailer, and electronics retailer; some of the world’s largest drug companies, beer companies, department stores, utility companies, automakers, and entertainment conglomerates; and some of the world's most prominent actors, comedians, and athletes.  His cases have figured prominently in the development of modern intellectual property, entertainment, and internet law, resulting in nearly 200 reported judicial decisions, which have been cited in thousands of other reported decisions.

Jeff was also a member of the litigation team that proved O.J. Simpson’s responsibility for the homicides of his ex-wife and her friend, obtaining a $33.5 million judgment for their wrongful deaths.