Catherine D. Stewart

Mr. del Hierro is a partner in the Corporate Practice Group of Kirkland & Ellis and heads our bank regulatory practice. He has more than 30 years of experience in representing banks and bank holding companies, thrifts and thrift holding companies, payments and fintech companies, investment banks and institutional lenders in connection with regulatory issues relating to capital formation transactions, mergers and acquisitions and complex financings. He has significant experience representi...

Richard Sirus is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Richard, who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Richard is held by other top lawyers in the same geographic and legal practice area.

Born and raised in the Chicagoland area, John grew up working in his family’s restaurant and then stayed local attending both Northwestern University (B.A.) and Notre Dame Law School (J.D.). As a first generation Greek American, John witnessed the difficulties that immigrants can experience while adapting to a new culture. He also experienced the importance of community in helping people to assimilate and understand how to become part of that new culture. He is fluent in Greek and has b...

Recognized by her peers and clients as a leader in commercial real estate, Amy Blumenthal has more than 35 years of experience in all areas of real estate, including office, retail, hotel, industrial and luxury residential properties, often concentrating on acquisitions, sales and financing, as well as real estate development. Her clients, from a variety of industries such as manufacturing, hospitality, and food and beverage, value her ability to listen and understand their priorities and nee...

Keith Hebeisen is a partner at Clifford Law Offices. One of the most respected medical malpractice attorneys in Illinois, Mr. Hebeisen has achieved great results for clients in settlements and trials. Although Mr. Hebeisen concentrates his practice in the area of medical malpractice cases against doctors and hospitals, he has represented individuals in a wide variety of cases, including transportation, product liability and toxic torts. We are proud to have him on our team. Mr. Hebeisen has b...

In each year since 2015, Bryan has been listed in the IAM Patent 1000 – The World’s Leading Patent Professionals for Litigation. He is also recognized in Patent Litigation: Full Coverage in the 2018, 2021 and 2022 editions of The Legal 500 United States. Bryan has litigated and counseled on patent matters for companies of various sizes across a variety of complex industries and technologies including medical devices, optical networking, pharmaceuticals, 3-D technology, material co...

John C. Kocoras is a partner in McDermott Will & Emery LLP’s White Collar & Securities Defense practice group and is based in the Firm’s Chicago office. John focuses his practice on internal investigations, white-collar criminal defense matters including Foreign Corrupt Practices Act (FCPA) cases and complex litigation. Prior to joining McDermott Will & Emery, John served as Managing Director and Regional Counsel of the global investigations company Kroll, where he dir...

Kenneth T. Lumb joined Corboy & Demetrio as a Chicago personal injury and medical malpractice lawyer in 1995 after a tour of duty in the United States Army. Ken was named Partner in 2015 and Managing Partner in 2019. As a captain in the Army's Judge Advocate General's Corps (JAG Corps), Mr. Lumb served four years as the Medical Claims Judge Advocate at Walter Reed Army Medical Center in Washington, D.C. His duties at the Defense Department's largest medical facility included medical malpr...

Sergio Acosta is Co-Chair of Akerman’s White Collar Crime and Government Investigations Practice. A former federal prosecutor and Fellow of the American College of Trial Lawyers with over 70 jury trials to his credit, he has extensive experience defending companies and individuals in criminal and regulatory proceedings, conducting internal investigations, and counseling clients on compliance programs and related issues. Sergio represents companies and individuals in regulatory, civil, a...

Tracy Brammeier is no stranger to tort law, having worked as a clerk at the firm for years and then jumping into courtroom work and complex tort cases. In fact, her intelligence and legal acumen have led her to already have worked on some of the biggest lawsuits filed at the firm, led by partners directing the cases. She works closely with partner Kevin P. Durkin handling many transportation accident matters. Tracy has worked on several cases involving bicyclists struck by trucks, a man who s...