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Local Litigation Star

National Practice Area Star

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Brendan Sullivan is a senior partner at the firm with 50 years of litigation experience in federal and state courts throughout the country. Mr. Sullivan is recognized nationally as one of the best known and most able trial lawyers in America, with an extraordinary re-cord of successes. His principal areas of practice include all types of complex commercial litigation, including securities, antitrust, banking, RICO, and license disputes; the defense of major law firms in malpractice cases and the defense of accounting firms; mass tort; will contests; as well as high-profile criminal litigation. Typical clients include Fortune 500 companies involved in criminal investigations, litigation, internal investigations, or government regulatory matters. 

In keeping with Williams & Connolly’s long tradition of representing individuals charged with white collar criminal violations, one area of Mr. Sullivan’s national practice continues to be the defense of persons caught up in the high-profile case. Such cases include the representation of Lt. Col. Oliver North and former HUD Secretary Henry Cisneros. Both involved massive legal battles against large prosecutorial teams working at the direction of specially appointed “Independent Counsels” with unlimited resources. In 2008- 2009, Mr. Sullivan defended U.S. Senator Ted Stevens. The case was dismissed when Mr. Sullivan and his team uncovered government misconduct that corrupted the trial. 

His peers and the media have repeatedly recognized Mr. Sullivan as one of today’s most respected trial lawyers. ABC World News named him “Person of the Week” praising the manner in which he handled six days of televised congressional hearings in the Iran-Contra matter. A New York Times editorial attributed the subsequent courtroom victory to North’s “battling lawyers.” The Washington Post has described him as a “world class lawyer.” The National Law Journal regularly lists him as among “America’s One Hundred Most Influential Lawyers.” Benchmark Litigation listed Mr. Sullivan as one of the top 100 trial lawyers in America in the 2014 to 2016 editions of Benchmark’s Top 100 Trial Lawyers. Chambers USA reported in their 2017 edition that he “enjoys an ironclad reputation as a white-collar specialist and trial maestro,” and quotes a source describing him as “one of the greatest lawyers ever.” In 2018, Chambers again recognized him as “a standout trial lawyer in the white-collar space” and a “tough, aggressive and tenacious” advocate for clients. In 2010, The National Law Journal listed Mr. Sullivan among “The Most Influential Lawyers of the Decade” (2000-2009) in litigation.


Updated Oct 2021