William P. "Bill" Sweeney
About William P. Sweeney
William P. Sweeney is a lawyer based in Chicago, IL and has been recognized in The Best Lawyers in America® since 2025. William P. Sweeney is recognized in the following practice area:
- Chicago, Illinois
- Employee Benefits (ERISA) Law
Current Firm: Polsinelli PC
Education: University of Illinois - Chicago, J.D., graduated 2002
Location: Chicago, IL
It takes just a few minutes to optimize your profile for prospective clients and lawyers ready to refer.
Log in to your account or continue as a guest to view annual subscription pricing.
Nearby Lawyers
Devon Beane brings clarity and control to complex patent disputes, guiding clients with a strategist’s mindset and a trial lawyer’s precision. Clients rely on her to deliver results in trial, IPRs, and global IP strategy when the stakes are high. Devon helps companies protect their innovations and resolve complex patent disputes in forums where precision and preparation are critical. She has led litigation teams in federal courts across the country, as well as before the Internati...
A member of Winston’s Executive Committee and winner of Best Lawyers’ “Lawyer of the Year” honor for securities and capital markets work in Chicago, Bruce represents clients in a variety of securities and financial matters, advising major corporations on their M&A transactions, debt offerings and other key capital market strategies and governance matters. Please read more here: https://www.winston.com/en/who-we-are/professionals/toth-bruce-a.html
Kenneth P. Kansa is a lawyer recognized by Best Lawyers in the practice areas of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Litigation - Bankruptcy. Kenneth P. practices law in Chicago, Illinois Best Lawyers has recognized Kenneth P. Kansa since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kenneth P. Kansa is held...
Laura M. Presto is a lawyer recognized by Best Lawyers in the practice area of Family Law. Laura M. practices law in Chicago, Illinois Best Lawyers has recognized Laura M. Presto since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Laura M. Presto is held by other lawyers.
Steven H. Sklar is a lawyer recognized by Best Lawyers in the practice areas of Biotechnology and Life Sciences Practice and Litigation - Intellectual Property. Steven H. practices law in Chicago, Illinois Best Lawyers has recognized Steven H. Sklar since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Steven H. Sklar is held by other lawyers.
With a reputation for having an in-depth understanding of his client’s businesses and their technologies, Darrick Hooker is a counselor and a litigator who routinely advises clients on a variety of intellectual property issues, with a focus on patents. He also helps protect clients’ trade secrets, trademarks, and copyrights and has a thriving commercial litigation and entertainment law practice. Darrick strives to help his clients identify and manage their global IP assets. He is ...
Sarah F. King is an established medical malpractice lawyer in Illinois. She works tirelessly to investigate and prepare complex medical malpractice cases to achieve justice for those who have been harmed by medical negligence. She works with dedication and tenacity to get to the bottom of what happened and what proper practices should have been used to prevent injuries related to medical care. It is this passion that makes her one of today’s top Chicago medical malpractice lawyers. Her ...
Michael Melzer is a lawyer recognized by Best Lawyers in the practice area of Public Finance Law. Michael practices law in Chicago, Illinois Best Lawyers has recognized Michael Melzer since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Michael Melzer is held by other lawyers.
Tia C. Ghattas is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. Tia C. practices law in Chicago, Illinois Best Lawyers has recognized Tia C. Ghattas since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Tia C. Ghattas is held by other lawyers.
Over the past 25 years, Brian Heidelberger has represented a multitude of the nation’s most revered brands and agencies in the marketing of their products and services. Recognized as Chicago “Lawyer of the Year” in Advertising Law by Best Lawyers and cited by Chambers USA as a “practical solutions-oriented lawyer” and an “expert in the field of advertising,” Brian is sought after by clients for his cutting-edge legal and industry knowledge, responsive...
Explore and Learn
What AI Visibility Means for Lawyers
by Bryan Driscoll and Josh Rupall
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
The Best Lawyers in Canada 2027: Recognizing the Nation's Top Legal Talent
by Jamilla Tabbara
Honoring established leaders and rising practitioners across Canada's legal profession.
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.
2027 Best Lawyers Awards: Honoring Excellence in the Legal Profession
by Jamilla Tabbara
Recognizing the outstanding attorneys leading top practice areas nationwide.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
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.
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.
Rules on Gifting Money to Family: What to Know
by Bryan Driscoll
Generosity often runs ahead of paperwork. Here's how to give to loved ones without surprising the IRS, your estate plan or your relationships.