Daniel Cunningham, a partner at Quinn Emanuel Urquhart & Sullivan who was recognised as a leading practitioner in the area of structured finance, died on March 31 of complications related to cancer, his firm said. He was 69 years old.

Before joining Quinn Emanuel in 2009, Cunningham spent 23 years at Cravath, Swaine & Moore, where he was at one time the managing partner of the London office, before joining Allen & Overy in 2001 as senior partner and co-head of the U.K. firm’s global U.S. practice.