Diana S. Doyle

Mr. Deer represents management in a variety of employment-related matters, including litigation involving age, race, sex, and disability discrimination claims, covenants not to compete, trade secrets, wage and hour claims, ERISA claims, and other workplace torts. Mr. Deer has been named in the 2009 and 2010 editions of The Best Lawyers in America.Mr. Deer has acted as lead trial counsel in employment discrimination/wrongful discharge cases in the federal district and state courts in Illinois,...

Brian C. Bianco is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Brian C., 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 Brian C. is held by other top lawyers in the same geographic and legal practice area.

Philip A. Bareck has been with Katz Friedman since 1991, became a partner in 2003, and a shareholder in 2007. Currently, he is an Adjunct Professor at IIT Chicago-Kent College of Law teaching Workers' Compensation Law, has been selected as an Illinois Super Lawyer (5% of the attorneys in Illinois), included in Best Lawyers in Workers’ Compensation Law, awarded inclusion in Top Trial Lawyers (American Trial Lawyers Association top 100 Trial Lawyers for Illinois), Top Attorneys in Illinoi...

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...

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...

With over 23 years of experience, Amy Moor Gaylord focuses her practice on traditional labor matters and employment litigation for both public and private sector employers with an emphasis on National Labor Relations Board (NLRB) proceedings, union organizing drives, NLRB-conducted elections, arbitration cases, contract negotiations, and employment discrimination matters. She has experience counseling clients in various industries, including higher education, not-for-profit, public safety (fi...

Olivia is an intellectual property litigator who represents individuals and corporations across the country in complex technological matters. She helps clients protect, enforce, and defend intellectual property rights, including patents, trade secrets, copyrights and trademarks. An experienced trial lawyer, Olivia has litigated and tried significant cases before the U.S. District Court for the Northern District of Illinois and other federal courts around the country, and has also briefed and ...

Richard Sirus is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Richard, who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Richard is held by other top lawyers in the same geographic and legal practice area.

Seth Horvath focuses his practice on trial and appellate litigation in state and federal courts nationwide. He represents a wide variety of clients in complex commercial disputes across multiple industries. My focus My practice includes three main areas: Commercial Litigation My commercial litigation experience is wide-ranging. From single-witness administrative hearings to complex, multiparty trials to summary proceedings on issues of law, I represent clients in the real-estate, financial-se...

Linda Moroney is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Linda, who practices law in Chicago, Illinois, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Linda is held by other top lawyers in the same geographic and legal practice area.