Thomas S. O’Neill

David Polster is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. David, who practices law in Chicago, Illinois, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

As a sought-after transactional and regulatory advisor, Patrick J. Martinez has built his practice on executing complex healthcare acquisitions and joint ventures. He represents private equity firms and their platform companies in the acquisition and divestiture of for-profit healthcare companies, as well as provider-to-provider deals. Read full biography: https://www.mwe.com/people/patrick-j-martinez/

Matthew Antinossi's practice includes all ERISA-related areas, and he has extensive experience with the employee benefits aspects of mergers, acquisitions and divestitures, including ESOP transactions. In addition to his transactional practice, Matthew is frequently involved in representing debtors in the employee benefits aspects of bankruptcy, insolvency and restructuring. Such representations frequently involve resolution of complex ERISA Title IV issues. A significant portion of Matthew's...

Monique Howery is a skilled litigator whose practice encompasses a range of complex intellectual property matters involving the development, registration, licensing, and enforcement of trademarks. Valued for her experience across a range of industries, Monique offers strategic guidance to advance her clients’ long-term business goals while protecting their legal interests. Monique is highly regarded for her ability to develop nuanced litigation strategies tailored to the unique needs of...

Robert Unikel is a partner in the Chicago office of Paul Hastings and is head of the Chicago and Midwest Intellectual Property practice. Mr. Unikel has a diverse practice that includes litigating patent, trade secret, and trademark cases in a variety of industries, including digital media distribution, consumer products and brands, financial products and services, auto parts, and medical devices. Mr. Unikel's extensive experience includes trying patent and trade secret cases involving varied ...

Justine Young Gottshall is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law. Justine Young, who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Justine Young is held by other top lawyers in the same geographic and legal practice area.

Kevin J. Feeley focuses his practice on the taxation of complex transactions, with particular emphasis on structuring and implementing partnership and limited liability company transactions, including joint ventures and private equity investments. In addition, Kevin has extensive experience in structuring mergers and acquisitions, tax-free reorganizations, recapitalizations and restructurings of financially troubled companies. He also has advised closely held companies, family offices, S corp...

Charles R. Haskins (Chuck) concentrates his practice on medical malpractice, products liability, and premises liability litigation. Chuck has worked at Clifford Law Offices for a number of years. Starting as a clerk, his commitment to his work and dedication to the law was immediately recognized. Chuck decided to work at Clifford Law Offices because of his interest in helping the injured, those who are in their most desperate times of need, and he does so with a calm, studied manner as he app...

Allen J. Guon 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. Allen J., who practices law in Chicago, Illinois, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Allen J. is held by other top lawyers in the same geographic and legal practice area.

A firm founder, visionary leader, and skilled litigator, Paul Slater handles high-stakes antitrust cases for private and public enterprises, including Fortune 500 companies. He pioneered the opt-out practice, representing companies as individual plaintiffs in industry-wide multidistrict antitrust litigation. This practice enables clients to tailor their claims and maximize their recoveries outside of class action proceedings, which often fail to meet individual client needs. Mr. Slater repres...