Jonathan L. Marks

Jonathan L. Marks concentrates his practice in the areas of business litigation, anti-fraud counseling and litigation, white collar criminal defense, compliance, internal investigations and civil litigation. He represents corporations and individuals that are trying to prevent or are victims of fraud or racketeering, clients in criminal and civil investigations and proceedings and corporate entities in general business litigation.

Jonathan is experienced in Racketeer Influenced and Corrupt Organizations Act (RICO) and fraud actions, primarily focused on matters involving the health care industry. He also represents clients in criminal matters and in preventing and while undergoing government investigations and represents corporations performing their own internal investigations.

Before joining Katten, Jonathan served more than five years in the US Attorney’s Office for the Northern District of Indiana. As an Assistant US Attorney, he handled a wide range of matters, including public corruption, tax evasion, RICO, money laundering, bank fraud, insurance fraud and embezzlement of employee pension and benefit funds. He tried many federal jury trials and handled and argued appeals before the US Court of Appeals. He also headed the Northwest Indiana Public Corruption Task Force, an interagency group targeting public corruption in Indiana, and successfully prosecuted a number of prominent public officials. Jonathan received a Director’s Award for Superior Performance as an Assistant US Attorney.

Jonathan began his legal career as a federal appellate court clerk for Judge Collins Seitz of the US Court of Appeals for the Third Circuit and then joined another large law firm in Chicago, where he acquired significant experience in civil litigation representing major corporations, commercial banks and other business entities and individuals in civil litigation in federal and state courts.

Good to know

Areas of Practice 1) Insurance and Health Care Fraud Litigation, 2) White Collar Defense, 3) Internal Investigations and Compliance and 4) Tax Controversy and Litigation
Law School The University of Michigan Law School ( J.D.)
Education Yale University (B.A.)
Bar Member / Association Illinois State Bar Association
Most recent firm Katten Muchin Rosenman LLP
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