profile image

Peter O’Neill

Shook Hardy & Bacon LLP

Peter F. O’Neill focuses on complex commercial litigation. His ability to simplify complex issues and provide cogent advice results in favorable outcomes for clients. Peter’s work experience spans diverse subject matter, including antitrust, class actions, post-closing disputes and intellectual property litigation.

He has litigated multiple matters to conclusion, both by dispositive motions and through trial or arbitration.

Peter leads the recruiting efforts and summer associate program in Shook’s Chicago office and serves as a member of Shook’s Search Committee.

Before joining Shook, Peter clerked for the Hon. Gerald J. Pappert of the U.S. District Court for the Eastern District of Pennsylvania, where he managed roughly one-third of the docket. During his clerkship, Peter researched a variety of procedural and substantive issues and drafted numerous opinions.

Representative Matters:

  • Currently represents a class consisting of approximately 1,500 medical providers and their practices in litigation against a large hospital system for breach of contract and other claims. The class was certified and affirmed twice on appeal. At trial, the jury awarded Peter’s client $58 million in damages. Peter’s work on this case has included drafting dispositive motions, taking depositions, examining multiple witnesses at trial, drafting and arguing jury instructions and drafting post-trial motions.
  • Currently represents a former trustee in a case involving claims of racketeering, fraud and breach of fiduciary duty. The trial court granted the trustee’s motion to dismiss, which Peter drafted and argued. The case is now on appeal to the Seventh Circuit.
  • Currently serves as trial counsel in a patent infringement case involving lithium-ion battery technology in cordless power tools. The case is currently on appeal to the Federal Circuit.
  • Currently serves as trial counsel in a high-profile antitrust class action involving the poultry industry.
  • Represented a provider of remote diagnostic cardiac monitoring technologies in a multimillion-dollar post-closing arbitration.
  • Represented a shareholder of a closely held company in a dispute seeking dissolution of the corporation. The case resolved on favorable terms for Peter’s client.


  • J.D., cum laude, Notre Dame Law School, 2015
    • International Academy of Trial Lawyers Award
    • Trial Team Member
  • B.A., Northwestern University, 2012 (Political Science)
    • Varsity Soccer
    • Billy McKinney Award Recipient
    • Team Leadership Award Recipient

Bar Admissions:

  • Pennsylvania
  • Illinois

Community Involvement:

  • Cycle for Survival
  • The Institute for Inclusion in the Legal Profession, Social Impact Incubator


  • The Hon. Gerald J. Pappert, U.S. District Court, Eastern District of Pennsylvania


Rate : $$$

What types of cases Attorney Peter O'Neill & Shook Hardy & Bacon LLP can handle?
Shook Hardy & Bacon LLP can handle cases related to laws concerning Litigation, Business, Antitrust & Trade. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Shook Hardy & Bacon LLP located?
Shook Hardy & Bacon LLP is located at 111 South Wacker, 111 S Wacker Dr #4700, Chicago, IL 60606, USA. You can reach out to Shook Hardy & Bacon LLP using their phone line 312.704.7710. You can also check their website or email them at
How much would it cost to hire Shook Hardy & Bacon LLP?
Peter O'Neill lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
Are Peter O'Neill reviews trust-able?
We have the ratings and reviews moderation team who checks and verifies every review submitted on our website manually. You can trust all the reviews you see on Peter O'Neill lawyer profile listing.

Rate and write a review

Your email address will not be published. Required fields are marked *

Is this your profile?Claim it now.

Make sure your information is up to date.
Shook Hardy & Bacon LLP
111 South Wacker, 111 S Wacker Dr #4700, Chicago, IL 60606, USA
Get directions
diamond elite badge
profile image

Robert L. McKenna III

Huntington Beach, California, US
diamond elite badge
profile image

Tyler Nicoll

Naples, Florida, US
diamond elite badge
profile image

Lina Stillman

New York, New York, US
diamond elite badge
profile image

David Centeno

New York, New York, US