Background & Experience

For more than twenty-five years Seth L. Rosenberg has specialized in defending white-collar criminal cases and litigating complex civil disputes. Before entering private practice, Seth served as Assistant District Attorney in the office of Manhattan District Attorney Robert M. Morgenthau, where he was Chief of the Rackets Bureau, and as a Special Assistant United States Attorney in the United States Attorney’s Office for the Southern District of New York.

At Clayman & Rosenberg LLP Seth has represented individuals and institutions in state and federal criminal investigations throughout the United States, and defended them against a wide range of charges including securities fraud, financial and health care fraud, embezzlement, money laundering, political integrity issues and many others. He also has appeared before the U.S. Securities and Exchange Commission, the Federal Election Commission and other regulatory bodies.

Seth also oversees the firm's civil practice. At any given time, Clayman & Rosenberg LLP is involved on behalf of its clients in civil RICO actions, complex commercial disputes and contract actions. Some of these cases involve fine art, the diamond industry and issues of insurance coverage. Minimizing his clients' exposure to risk is a central concern in both areas of Seth’s practice. He has been selected as a "Super Lawyer" in the New York City Metro area.


-- Representation of the Democratic election commissioner in Dutchess County, NY for alleged violations of state criminal and election laws.

-- Persuaded U.S. Department of Justice to decline prosecution of former chairman of New York State Republican Party following three-year corruption investigation.

-- Obtained dismissal of domestic violence charges against investment banker.

-- Convinced N.Y. State Attorney General to decline prosecution of CFO of major health care provider following four-year Medicaid fraud investigation.

-- Represented alleged “bad faith” defendants in Bernard Madoff bankruptcy proceedings.

-- Represented individuals in FBAR/criminal tax evasion investigation of foreign bank accounts.

-- Obtained full restitution with interest for victim of dishonest attorney who stole settlement proceeds.

-- Represented executive in U.S. Department of Justice investigation of fraud against Export-Import Bank.

-- Persuaded N.Y. State Attorney General and U.S. Department of Justice not to file charges against insurance company president in securities fraud investigation.


Seth has taught trial practice for prosecutors and is a longstanding faculty member at the Intensive Trial Advocacy Program at the Benjamin N. Cardozo School of Law. He has served on numerous committees of the Association of the Bar of the City of New York, including the Criminal Justice Council and the Criminal Law Committee. He also has served on the Advisory Committee on Criminal Law to the Chief Administrative Judge of the Courts. Seth is a member of the New York State and American Bar Associations, the Federal Bar Council and the New York Council of Defense Lawyers.


Seth received his Master of Laws degree in Taxation from New York University Law School, and graduated from Rutgers University School of Law.


Seth is admitted to practice in New York, the United States District Courts for the Southern and Eastern Districts of New York, the District of Columbia and numerous other federal jurisdictions.