The Firm has a record of obtaining exceptional outcomes for clients in high-stakes financial and business disputes and government enforcement and regulatory matters. Our partners include former senior federal prosecutors and highly experienced practitioners whose judgment, sophistication and advocacy skills have been honed over decades of experience as trial lawyers, civil litigators, and defense counsel handling the most challenging and sensitive cases. Our clients include public and private company executives, attorneys, accountants, bankers, brokers, portfolio managers, healthcare and pharmaceutical executives, highly placed government officials, public companies, board and board committees, financial institutions, money management firm, hedge funds and nonprofit entities.
Petrillo Klein & Boxer LLP
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Nelson A. Boxer represents corporations and individuals in criminal prosecutions, criminal and regulatory investigations, and in commercial litigation. A trial lawyer, he served as an Assistant United States Attorney in the Southern District of New York for seven years. In private practice, Mr. Boxer has been lead counsel in high-profile criminal and civil investigations and trials, involving securities, health care, banking, accounting, and tax, among other areas of law. Mr. Boxer also has e...
Mr. Cohen is a graduate of the NYU School of Law, having received a J.D. and an L.L.M. with a concentration in federal taxation. At the outset of his legal career, Mr. Cohen served for ten years as a prosecutor — first as a Special Assistant Attorney General in the Office of the New York State Prosecutor’s Office, where he investigated and prosecuted high profile corruption cases involving the New York City criminal justice system; and afterwards, when he was a Special Attorney an...
Guy is a Fellow of the American College of Trial Lawyers. He represents clients in civil and criminal litigation and investigations, regulatory enforcement matters, antitrust proceedings and independent investigations. He has also served as an arbitrator and as counsel in commercial arbitrations, bankruptcy court matters, including trustee and examiner investigations and adversary actions, and in mediations. Guy was named as a Best Lawyers 2026 ‘Lawyer of the Year’ for Criminal De...
Christina Karam’s practice focuses on white-collar criminal defense, regulatory investigations, and complex commercial litigation. She has represented institutional and individual clients in a diverse range of matters involving alleged violations of securities, fraud, and bribery laws and alleged breaches of contract, as well as advising on compliance programs and remediation. She has experience at all phases of litigation and regularly represents clients in DOJ and SEC matters, and wel...
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