William F. Cook, VI
William F. Cook, VI
Associate
"I’m a trusted, tenacious advocate committed to delivering clarity, confidence, peace of mind, and a competitive edge while pursuing the best possible outcomes."

William F. Cook, VI
Associate
"I’m a trusted, tenacious advocate committed to delivering clarity, confidence, peace of mind, and a competitive edge while pursuing the best possible outcomes."
About Bill
Bill is a dedicated business litigator with a proven track record of representing individuals and commercial enterprises in high-stakes contract disputes and catastrophic torts, including wrongful death and survival claims. He brings a strategic, client-focused approach to each matter, backed by extensive trial experience and a deep understanding of litigation from start to finish. Understanding that litigation success extends beyond the courtroom, Bill is a skilled negotiator who leverages his thorough case insight to secure favorable settlements, often just before trial, while striving to protect his clients’ interests and achieve efficient, business-minded outcomes.
Bill advises clients on a broad range of complex issues, including managed care disputes involving life, health, disability, and ERISA-related matters. He counsels both in-network and out-of-network providers on payment disputes, coding audits, and denials of treatment and charges. He also advises employee benefit plans and fiduciaries on health, life, and disability benefit claims, ERISA- and non-ERISA issues; managed care and health care litigation, and matters involving consumer fraud, bad faith, data privacy, biometric privacy compliance, securities fraud, and corporate disputes and dissolutions.
Areas of Focus
Industries:
Experience
- Obtained summary judgment in a trip and fall case on the grounds that Hinshaw’s client did not have actual or constructive notice of the condition of the premises.
- Negotiated a contested consent judgment on the eve of a bench trial to “pierce the corporate veil,” securing a high six-figure judgment for the client and against the defendants.
- Secured a dismissal with prejudice for a chiropractic business client on statute of limitations grounds, a decision which was affirmed on appeal.
- Won a motion to dismiss in a high profile case involving public figures, resulting in a dismissal with prejudice.
- Obtained a voluntary dismissal by the plaintiff of all claims against Hinshaw’s client with prejudice in a dog bite case after the plaintiff read our motion to dismiss.
Recognition
- Chicago-Kent College of Law at Illinois Institute of Technology: CALI Award, Advanced Legislative Advocacy; Legislative Advocacy
Credentials
Education
- Chicago-Kent College of Law at Illinois Institute of Technology, JD, 2018
- John Carroll University, BA, BS, cum laude, 2013
Bar Admissions
- Illinois
Court Admissions
- US District Court for the Northern District of Illinois
Languages
- French
Thought Leadership
Presentations
- Co-Presenter, "Lincoln Lawyer Cook County Practice," Hinshaw University, CLE Webinar, March 12, 2025
- Co-Presenter, "Debt Collection Compliance," Lorman, Webinar, January 26, 2024
Event
In The News
- Six Hinshaw Attorneys Contribute Chapters to the 2024 Edition of the "Dramshop Act Practice" IICLE Handbook, Feb 16, 2024
- William Cook Authors "Breach of Contract and Nonperformance" Chapter in IICLE Contract Law Handbook, May 10, 2023
- Scott Seaman, Philip Kujawa, and William Cook Author Chapters in Seventh Edition of IICLE Handbook on Wrongful-Death and Survival Actions, Dec 19, 2022
Interests
Did you know...
When he's not spending time with family and friends, Bill enjoys running, sailing, cheering on the Chicago White Sox, and exploring new places and cultures firsthand.
Community/Civic Activities
- Alliance Française de Chicago, Professionals Group
- Chicago-Kent Student-Alumni, Board Member
- John Carroll University, Chicago Alumni Chapter, President; Service Committee, Past Co-Chair
- Brother Rice High School, Class Captain
- Knights of Columbus, Former Financial Secretary
- Young Irish Fellowship Club
Thought Leadership
Presentations
- Co-Presenter, "Lincoln Lawyer Cook County Practice," Hinshaw University, CLE Webinar, March 12, 2025
- Co-Presenter, "Debt Collection Compliance," Lorman, Webinar, January 26, 2024
Event
In The News
- Six Hinshaw Attorneys Contribute Chapters to the 2024 Edition of the "Dramshop Act Practice" IICLE Handbook, Feb 16, 2024
- William Cook Authors "Breach of Contract and Nonperformance" Chapter in IICLE Contract Law Handbook, May 10, 2023
- Scott Seaman, Philip Kujawa, and William Cook Author Chapters in Seventh Edition of IICLE Handbook on Wrongful-Death and Survival Actions, Dec 19, 2022
Bill's Insights

Press Release
May 12, 2025
Appellate Spotlight: Hinshaw Secures Appellate Victory in Chiropractic Negligence Lawsuit

Press Release
Nov 25, 2024
IICLE Names Hinshaw Attorney William Cook its 2024 Publications Contributor of the Year