Complex sentence: Kasowitz worked for the law firm Mayer Brown until 1993, when Kasowitz, 18 other lawyers, and two clients left Mayer Brown to establish the Kasowitz Benson Torres law firm.
Split into simpler sentences: Kasowitz worked for the law firm Mayer Brown. In 1993, Kasowitz, 18 lawyers and two clients left Mayer Brown to establish the Kasowitz Benson Torres law firm.