John Duffy

Marta K. Davidson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Marta K., who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marta K. is held by other top lawyers in the same geographic and legal practice area.

John A. Ybarra is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. John A., 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 John A. is held by other top lawyers in the same geographic and legal practice area.

Susan is highly regarded nationally in the area of health care reform and health and welfare benefits. She assists employers and health plans with their health care reform strategy and compliance with laws affecting group health plans, such as the Affordable Care Act (ACA), Health Insurance Portability and Accountability Act (HIPAA), Employee Retirement Income Security Act, the CARES Act, the Mental Health Parity and Addiction Equity Act, and the Internal Revenue Code. Susan also has extensiv...

Rachel B. Cowen focuses her practice in various employment discrimination and wrongful termination cases in federal and state courts. Rachel’s experience includes prosecuting and defending employee mobility and trade secret litigation on an emergency injunctive basis. She also counsels employers facing union organizing activity and picketing, and has successfully tried numerous cases before the National Labor Relations Board. She also handles collective bargaining and labor arbitrations...

As an advisor and counselor to entrepreneurs, closely held businesses, and wealthy families and their family offices, Steve Gustafson draws upon multiple disciplines to provide integrated tax, business and financial advice. Steve’s practice has a substantial emphasis in the areas of tax and financial transactions, including structuring corporate, joint venture, commercial and real estate transactions, as well as assisting family businesses with tax and financial planning matters. He als...

After two years as a law clerk at Cooney & Conway, Lawrence (Larry) Robert Weisler joined the firm as an associate in 2004. Receiving his B.S. from Michigan State University, Mr. Weisler graduated with a J.D. from John Marshall Law School. Mr. Weisler’s practice includes a wide variety of civil trial matters concentrated in asbestos litigation, product liability, premise liability, and personal injury. Since joining the firm, Mr. Weisler has obtained settlements in over 100 mesothel...

Valentina Famparska concentrates her practice on the federal income tax aspects of complex business transactions and entities, including mergers, acquisitions, leveraged buyouts, private equity investments, formation of private equity and real estate funds, formation of joint ventures and partnerships, and management compensation. Valentina also works with the firm's health care practice, sports and sports facilities practices, financial services practice and the trusts & estates practice...

Jacqueline M. Vidmar has more than thirty five years of environmental law experience, brings wealth of knowledge to transactional and regulatory matters and disputes. She represents companies in a variety of industries, including manufacturing, public utilities, health care and pharmaceuticals, transportation (rail and pipeline), and real estate. Ms. Vidmar excels in real estate portfolio management, M&A due diligence, contaminated property disputes, remediation and development, defense o...

Stephanie Samz is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Stephanie, 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 Stephanie is held by other top lawyers in the same geographic and legal practice area.

Richard L. Sevcik concentrates his practice in exempt organizations and health care law. He has extensive experience in the representation of public charities, tax-exempt health care systems, private foundations and charitable trusts. He is a member of the firm's Pro Bono Committee.