Jacqueline M. "Jackie" Mazur

Bradley C. Giglio is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Bradley C., who practices law in Bloomingdale, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bradley C. is held by other top lawyers in the same geographic and legal practice area.

Norma Manjarrez is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Norma, 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 Norma is held by other top lawyers in the same geographic and legal practice area.

Bill Arnault is a litigation partner in the Firm’s Chicago office. He focuses his practice in the restructuring context. He also has extensive experience litigating complex commercial cases in federal and state trial and appellate courts throughout the United States, including contract, energy, fiduciary duty, fraudulent transfer, bankruptcy, and employment cases. He has chaired or co-led multiple trials and hearings, including disputes involving Parker Drilling Company, Emerald Oil, In...

As a corporate attorney working with clients ranging from start-up entrepreneurs to institutional investors and established companies, Jeremy takes a collaborative, client-focused approach to helping clients understand legal and business risks and offers practical guidance to help them achieve their strategic objectives. Jeremy concentrates his practice on counseling investors (including private equity and venture capital funds and angel investors) in connection with their debt and equity inv...

Jay Augustyn is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Jay, 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 Jay is held by other top lawyers in the same geographic and legal practice area.

Jonathan P. Froemel, a partner in the Chicago office of Barnes & Thornburg, is a member of the firm's Intellectual Property and Litigation Departments. Jonathan's intellectual property practice focuses on trademark prosecution and trademark, copyright and patent litigation, trademark prosecution and licensing. His litigation practice includes general commercial, construction, environmental, and real estate disputes. Jonathan represents clients in actions across the United States and has l...

Ross Emmerman is a broad-based transactional lawyer focusing on domestic and cross-border middle- market mergers and acquisitions, venture capital, and other financings and joint venture arrangements. He counsels public and private companies, family offices, and other buyers and sellers of businesses on structuring and negotiating complex business transactions, including purchases and sales of distressed businesses, executive compensation and general corporate matters. Ross also regularly rep...

Mr. Kilyk practices exclusively in the field of intellectual property law, especially patent law. Mr. Kilyk specializes in patent post-grant review proceedings, inter partes reexaminations, interferences, and oppositions, as well as legal opinions, prosecution, and litigation matters, with specific concentration in the areas of biotechnology, chemistry, and pharmaceuticals. Recent technologies with which he has been involved include biosimilars, new chemical compounds, nucleic acid sequences,...

Aurelija Fitzpatrick is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Aurelija, 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 Aurelija is held by other top lawyers in the same geographic and legal practice area.

Richard R. Winter is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Richard R., 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 Richard R. is held by other top lawyers in the same geographic and legal practice area.