Thomas S. O’Neill
About Thomas S. O’Neill
Thomas S. O’Neill is a lawyer based in Chicago, IL and has been recognized in The Best Lawyers in America® since 2023. Thomas S. O’Neill is recognized in the following practice area:
- Chicago, Illinois
- Energy Law
Current Firm: Jenner & Block LLP
Location: Chicago, IL
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Michelle M. Kohut is a Chicago personal injury trial lawyer and was named Partner at Corboy & Demetrio in 2019. She practices in all areas of personal injury law, including cases arising from automobile collisions, medical malpractice, construction negligence, premises liability, product liability and railroad negligence, as well as in the area of workers' compensation. Michelle has tried many personal injury cases to verdict and has obtained numerous multi-million dollar settlements on b...
For five years, attorney Craig D. Brown worked as a Cook County prosecutor fighting for victims of violent crimes. The experience proved insightful, as Craig recognized the importance of representing people in need of justice and the devastating effects crime can have on victims. As a personal injury trial lawyer, Craig continues to use that perspective in his practice, representing clients who have been the victims of severe traumatic injuries, wrongful death , product liability , and medica...
Julie Seymour represents and counsels banks and borrowers, including hospitals, health systems, educational and cultural institutions and long-term care providers; governmental issuers; underwriters; and trustees in connection with tax-exempt and taxable financings. Since 1990, Julie has been involved in billions of dollars of tax-exempt bond financings, including fixed and variable rate structures, as well as secured and unsecured lending transactions. What do you focus on? In my finance pra...
David J. Rashid joined Salvi, Schostok & Pritchard P.C. in 2023, focusing on catastrophic personal injury, medical negligence, and wrongful death cases. He has expertise in medical malpractice cases involving misdiagnosis, surgical errors, birth injuries, emergency room errors, and strokes. In his first trial with the firm, he secured a $32.7 million jury verdict for a man who underwent a foot amputation due to a delayed blood clot diagnosis, the largest Illinois verdict for such a loss. ...
John J. Perconti is a highly-acclaimed Illinois medical malpractice attorney and co-founder of Levin & Perconti. For over 25 years, he has devoted his practice to advocating for people and families in personal injury and wrongful death cases. In 1992, he merged his practice with Steven Levin, and now the firm employs twenty elderly abuse lawyers in Chicago and has obtained over $520 million in verdicts and settlements for clients. John has an excellent record of success representing clien...
Gregg Dorman is a partner in Nixon Peabody’s Real Estate group and has more than 35 years of experience representing sellers, purchasers, landlords, tenants, owners, investors, and developers on real estate transactions across industries and asset types, including retail, office, industrial, mixed-used, healthcare, entertainment, and sports venue projects. My focus I represent clients on all aspects of complex commercial real estate transactions, including the acquisition, disposition, ...
David W. Wirt is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Litigation - Bankruptcy. David W., who practices law in Chicago, Illinois, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David W. is held by other top lawyers in the same geographic and legal practice area.
Mark R. Galis is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law and Trademark Law. Mark R., who practices law in Chicago, Illinois, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark R. is held by other top lawyers in the same geographic and legal practice area.
Maureen O'Brien is a partner in the Chicago office of Kirkland & Ellis LLP. Maureen's practice includes a broad range of employee benefits and executive compensation matters, and she has extensive experience with the M&A aspects of employee benefits and executive compensation, including strategic and private equity transactions. Maureen advises clients on the design and implementation of qualified and nonqualified retirement plans, welfare plans, Section 409A matters and equity and in...
Explore and Learn
What AI Visibility Means for Lawyers
by Josh Rupall and Bryan Driscoll
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Can You Go to Jail at an Arraignment?
by Bryan Driscoll
Understanding What Happens at Your First Court Appearance.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
When Is It Too Late to Stop Foreclosure?
by Bryan Driscoll
Understanding the foreclosure timeline, critical deadlines and the legal options that may still protect your home.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.