About

Daniel Thomas Hartnett, a seasoned attorney based in Illinois, brings a wealth of experience to his practice at the Law Offices of Daniel Thomas Hartnett. With a robust foundation as a federal prosecutor and a distinguished civil trial attorney in the U.S. Justice Department's Tax Division, Mr. Hartnett has honed a keen understanding of both the intricacies of law and the importance of effective advocacy. His practice is dedicated to guiding individuals and organizations through the complexities of legal challenges across six primary areas. Whether representing clients in federal criminal prosecutions, navigating federal civil tax controversies, or conducting thorough corporate internal investigations, Mr. Hartnett employs his extensive knowledge and skills to deliver exceptional service. He also advocates for professionals facing scrutiny before licensing authorities and provides vital support to witnesses involved in federal investigations. Additionally, his expertise extends to handling both federal and state appeals, ensuring that clients receive comprehensive representation throughout the legal process. Respected for his commitment to client success and his unwavering integrity, Mr. Hartnett is a trusted ally in the legal arena. His dedication to achieving favorable outcomes is matched only by his passion for justice, making him a standout choice for those seeking legal guidance in Illinois.

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