"Brendan V. Sullivan, Jr." is a senior partner of the law firm Williams & Connolly. Sullivan is white-collar crime/white-collar criminal defense attorney best known for his defense of U.S. Marine Lieutenant-Colonel Oliver North in the wake of the Iran-Contra Affair/Iran-Contra scandal in the late 1980s. He is known for his combative style and several prosecutors have been fired, disbarred, or jailed for prosecutorial misconduct Sullivan had uncovered.

He has also represented former U.S. Department of Housing and Urban Development (HUD) Secretary Henry Cisneros, Walter Forbes, former chairman of Cendant Corporation, and a number of states against Microsoft, and the lacrosse players in the Duke lacrosse case.

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