Leah B. Grossi

• Prepared high-level government witnesses for congressional hearings and briefings, including U.S. Attorney General Merrick B. Garland, U.S. Supreme Court Associate Justice Ketanji Brown Jackson, and Special Counsel Robert K. Hur.
• Represented a major U.S. bank in a high-profile investigation by the Department of Justice into the origination and sale of residential mortgage backed securities.
• Represented leading automobile manufacturers in connection with government investigations and multi-jurisdictional civil litigation relating to a series of high-profile vehicle recalls.
• Represented JPMorgan Chase in the first bank civil lawsuit arising out of the subprime mortgage financial crisis. JPMorgan Chase won summary judgment on all of its claims in a federal fraud and breach of fiduciary duty lawsuit brought by Bank of America against JPMorgan Chase’s Bear Stearns Asset Management ("BSAM") unit in connection with a $4 billion collateralized debt obligation transaction.
• Served as General Counsel for the Ethics and Compliance Initiative, an organization that is committed to creating and sustaining high quality ethics and compliance programs throughout the world.
• Represented the Creditors Committee in the Magna Entertainment bankruptcy in litigation concerning the recharacterization of debt and equitable subordination claims.
• Represented individuals and corporations in Department of Justice, National Highway Traffic Safety Administration, Securities and Exchange Commission, Commodity Futures Trading Commission, New York Attorney General, and New York Department of Taxation and Finance investigations.
• As an Assistant United States Attorney, prosecuted and investigated a wide variety of federal criminal matters, including cases involving wire and bank fraud, money laundering, identity theft, false tax preparation and returns, government contract fraud, theft of government property, and graft.
• Served as lead counsel on a wide variety of state criminal matters on behalf of The Legal Aid Society Criminal Defense Division in Manhattan.
• Represented the Bronx Bureau of the New York City Law Department, Office of the Corporation Counsel as a Public Service Attorney.
• Represented several Uighurs, a persecuted Muslim minority group from western China, who were wrongfully imprisoned at Guantanamo Bay.

Leah B. Grossi counsels corporate clients and senior executives through high-impact, bet-the-company government investigations and enforcement actions. A former federal prosecutor with senior experience at the Department of Justice and the White House Counsel’s Office, Leah brings an inside perspective to protecting reputations, minimizing legal exposure, and achieving favorable outcomes in high-stakes criminal and civil matters.

Leah’s government service gives clients practical insight into how federal prosecutors, regulators, and congressional investigators evaluate high-stakes matters. Before entering private practice, Leah served as Senior Counsel in the Department of Justice’s Office of Legislative Affairs, as an Assistant United States Attorney for the District of Maryland from 2018 to 2021 and 2022 to 2024, and as Associate Counsel in the White House Counsel’s Office from 2021 to 2022. Her experience leading internal investigations, trying cases, arguing in court, and preparing senior executives for congressional hearings informs her approach to white-collar criminal defense, government investigations, and parallel civil and criminal proceedings. Leah helps clients identify legal and reputational risk early, anticipate institutional concerns, and develop coordinated strategies that advance their business objectives.

Clients turn to Leah for strategic counsel in complex government and regulatory investigations, enforcement actions, congressional investigations, and related crisis response. She has defended companies and individuals in matters involving the Department of Justice, Congress, Drug Enforcement Administration, Securities and Exchange Commission, Office of the Comptroller of the Currency, and National Highway Traffic Safety Administration. Drawing on her experience as a federal prosecutor and senior government lawyer, Leah helps clients respond to subpoenas and information requests, prepare executives and other witnesses for testimony, navigate interactions with enforcement authorities, and manage sensitive factual and communications issues. She brings close attention to detail and steadiness under pressure while leading integrated teams across legal strategy, factual development, witness preparation, and communications.