CORRECTIONS: 4/7/14, 11:45 p.m. EDT. The 13th paragraph of this story misstated the length of time O’Donnell spent at a halfway house and the length of his initial law license suspension in California. We regret the errors.

Former Kaye Scholer litigation partner Pierce O’Donnell, a legendary Los Angeles trial lawyer who held on to his California law license despite serving almost 60 days in prison two years ago after pleading guilty to campaign finance violations, has agreed to join Greenberg Glusker Fields Claman & Machtinger.