Highly strategic and results-oriented advocates committed to excellence in client service.

Thomas H. Collier

Partner ( Chicago )

Direct 312. 471.8670 LinkedIn

Bio

Thomas H. Collier is a Partner in RSHC's General Litigation practice and represents businesses, financial institutions, and industry leaders in complex commercial disputes across the country. He advises clients on high-exposure litigation matters, bringing a combination of courtroom experience, strategic judgment, and business acumen to every engagement.

Tom has successfully represented clients through all phases of litigation in state and federal courts, including fact and expert discovery, dispositive motion practice, trial preparation, trial, and appeal. His practice spans a wide range of industries, including financial services, investment banking, telecommunications, and healthcare and medical devices.

A former law clerk to Judge Steven C. Seeger of the U.S. District Court for the Northern District of Illinois, Tom leverages a deep understanding of federal court procedure and judicial decision-making to develop practical, effective litigation strategies. Before entering private practice, he served as a public affairs consultant in Washington, D.C., directing national advocacy campaigns for a Fortune 50 company, experience that provides a unique perspective on the legal, business, and reputational risks facing clients today.

Recognized in the 2026 and 2027 editions of Best Lawyers: Ones to Watch® in America for Commercial Litigation, Tom is known for his thoughtful counsel, persuasive advocacy, and commitment to achieving successful outcomes for clients facing their most significant disputes.

Experience

Clerkships

Hon. Steven C. Seeger, U.S. District Court for the Norther District of Illinois (2019-2020)

Credentials

Education

University of Chicago Law School, J.D., 2017, with honors
Yale University, B.A., 2004, Political Science, cum laude, with distinction in the major

Bar Admissions

Illinois
U.S. District Court for the Northern District of Illinois
U.S. District Court for the Eastern District of Michigan

Professional Memberships

American Bar Association

Honors & Awards

The Best Lawyers in America: Ones to Watch, Best Lawyers®, Commercial Litigation
Thomas H. Morsch Award for Pro Bono Achievement, Sidley Austin, LLP (2026)
Award for Excellence in Pro Bono Service, U.S. District Court for the Northern District of Illinois (2025)

Community Service

Pro Bono Activities

In 2026, won federal habeas relief vacating a client’s death sentence as unconstitutional because of the petitioner’s intellectual disability.
Negotiated a settlement in a Section 1983