[4] Between 2009 and 2016, Harder represented a number of celebrities over misappropriation of their names and likeness,[8] including Sandra Bullock,[9] George Clooney, Bradley Cooper,[10] Jude Law,[11] Mandy Moore,[12] Liam Neeson,[10] Julia Roberts[9] and Reese Witherspoon.
[18] In 2011, Harder won an $18 million verdict for Cecchi Gori Pictures and defeated a multi-million dollar counter-claim after a four-week trial in Los Angeles state court.
[19][20] In 2017–18, Harder represented Ivan Aguilera, the heir of Mexican pop icon Juan Gabriel, against Univision and Telemundo in a $100 million defamation suit.
On October 15, 2018, the U.S. District Court granted an anti-SLAPP motion filed by Harder, dismissing the lawsuit with prejudice and awarding Trump reimbursement of his attorneys fees against Stormy Daniels.
[32] In 2020, Harder sued VICE Media on behalf of BYD, a multi-billion dollar electric vehicle manufacturer based in China backed by Warren Buffett.