Best Lawyers in Illinois, United States for Criminal Defense: White-Collar
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Drawing on nearly 40 years of combined experience as a federal prosecutor and defense attorney, Sheldon Zenner expertly navigates his clients through high-stakes matters, including government and internal investigations, regulatory proceedings, all phases of criminal matters and related civil litigation. Sheldon's diverse client base is made up of corporations, high-ranking executives and company owners across a wide range of industries, including financial services, health care and entertain...
John F. Gibbons has more than 25 years of experience handling a broad range of civil and criminal matters for national corporations, financial institutions, brokerage houses, pension funds, real estate entities, and individuals, including fraud, breach of contract, trade secret, class action, RICO, civil rights, commercial and criminal securities cases, grand jury investigations, white collar defense, FCPA issues, corporate internal investigations and appeals. He has advised many corporate cl...
Jonathan Marks helps clients — often large insurers — develop investigation, claims handling and litigation strategies to detect, prevent and deter fraud. As an Assistant US Attorney, Jonathan tried numerous federal jury trials and argued appeals before the US Court of Appeals. As a lawyer in private practice, Jonathan has handled hundreds of insurance fraud investigations and dozens of fraud litigation matters. At every stage of counseling, investigation, litigation and in court,...
A highly skilled civil, criminal, and appellate litigator, Joel Bertocchi handles appeals in state and federal courts and represents clients in connection with criminal and regulatory investigations and proceedings, providing counsel on compliance policies and related issues. He has argued cases in the U.S. Supreme Court and multiple federal Circuits and state appellate courts, and served as Illinois’ Solicitor General, the chief appellate lawyer for the State. A former federal prosecut...
Mariah A. Whitner is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Criminal Defense: White-Collar. Mariah A., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mariah A. is held by other top lawyers in the same geographic and legal practice area.
Andrew Patton specializes in white collar civil and criminal defense with a primary focus on matters involving the Foreign Corrupt Practices Act (FCPA), U.S. health care fraud and abuse regulations, and False Claims Act (FCA) litigation, among other areas. Andrew supports companies in internal investigations in response to allegations of wrongdoing or government investigations, as well as proactive risk assessments of their operations and policies. Andrew has counseled companies in a range of...
A. Matthew Durkin is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. A. Matthew, who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which A. Matthew is held by other top lawyers in the same geographic and legal practice area.
Denise Vaughn is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Denise, who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Denise is held by other top lawyers in the same geographic and legal practice area.
Sean Koller represents clients in a variety of industries in complex business disputes. Whether handling a pre-litigation negotiation, representing a client in a mediation, federal or state court litigation, arbitration, a government investigation or inquiry, or working out a settlement, Sean brings the experience needed to resolve matters efficiently and effectively. Sean has handled complex commercial suits, antitrust and healthcare disputes, derivative suits, tort disputes, and contractual...
Anna Bninski is a litigation attorney with a focus on persuasive use of precedent. Anna develops approaches with the goal of effectively advancing client goals over the course of a case and is able to distill sprawling facts and complex law into summaries that are easily understood. With judicial clerkship experience, Anna offers clients a considerable understanding of the litigation process. She is a skilled researcher and writer and uses these skills to formulate an effective litigation str...
Caitlyn A. Cheleden is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Caitlyn A., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Caitlyn A. is held by other top lawyers in the same geographic and legal practice area.
Emilie O’Toole is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Emilie, who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Emilie is held by other top lawyers in the same geographic and legal practice area.
When clients in highly regulated industries such as banking and health care are facing high-stakes government investigations, Adam Safer offers strategic counsel to address immediate needs and promote positive outcomes over the long term. Adam focuses his practice on defending businesses against allegations of fraud and corruption and has participated in investigations of False Claims Act (FCA) and Foreign Corrupt Practices Act (FCPA) violations. An experienced litigator with a passion for de...
Our Methodology
Recognition by Best Lawyers is based entirely on peer review. Our methodology is designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.
The Process
Best Lawyers employs a sophisticated, conscientious, rational, and transparent survey process designed to elicit meaningful and substantive evaluations of the quality of legal services. Our belief has always been that the quality of a peer review survey is directly related to the quality of the voters.