Vincent S. Oleszkiewicz

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

Financial institutions across the country rely on David Dlugie to handle their most critical commercial property and commercial loan matters, sometimes with extremely tight timelines. For clients that are financing or selling/buying/leasing real property, or acquiring or disposing of commercial real estate loans, he solves their financing and equity issues using negotiation skills honed through three decades of practice. As the head of Katten's Chicago Real Estate practice, David assembles te...

Mark Hagedorn advises on a wide variety of intellectual property matters, including patent, trademark and copyright solicitation and IP litigation, licensing and counseling. Appreciated for his honesty and practical legal advice, Mark consistently delivers utilitarian solutions that help his clients resolve disputes and litigation efficiently and economically. Mark offers broad experience in virtually all phases of IP counseling and litigation. He understands and has represented clients invol...

Peter G. Rush is a top attorney recognized by Best Lawyers in the practice area(s) of Sports Law. Peter G., 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 Peter G. is held by other top lawyers in the same geographic and legal practice area.

Larry is chair of the firm’s Private Wealth Services practice group. He facilitates successful legal strategies for entrepreneurs, tax-exempt organizations, fiduciaries and high-net worth families and individuals. This work involves estate, gift and charitable planning issues, including business succession, tax-efficient ownership structures, sophisticated tax-exempt structures, trust and estate administration, executive benefits, life insurance and international estate planning for wea...

Sarah F. King is one of Chicago’s rising medical malpractice lawyers at the firm and one of the most hard-working, intelligent attorneys one can find. 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 actually happened and what proper practices should have been used to prevent injuries related to medical care. It is ...

Drawing on nearly 40 years of combined experience as a federal prosecutor and defense attorney, Sheldon Zenner expertly navigates his clients through high-stakes matters, including government and internal investigations, regulatory proceedings, all phases of criminal matters and related civil litigation. Sheldon's diverse client base is made up of corporations, high-ranking executives and company owners across a wide range of industries, including financial services, health care and entertain...

Cezar M. Froelich is a top attorney recognized by Best Lawyers in the practice area(s) of Gaming Law. Cezar M., who practices law in Chicago, Illinois, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cezar M. is held by other top lawyers in the same geographic and legal practice area.

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

Karen V. Paige has over 20 years of experience in litigation and mediation, practicing in Lake and Cook Counties, as well as over a decade in Los Angeles during the first part of her career. In addition to significant experience handling a wide range of financial and parenting matters, Ms. Paige has years of experience as a guardian ad litem in Lake County. Recently named to the Best Lawyers in America, Ms. Paige brings her collective experience to each case, tailoring that experience to the ...