Kenneth L. "Ken" Cunniff

John Callahan advises clients on health sector mergers and acquisitions. Public companies, private equity firms, nonprofit health systems, academic institutions and governmental entities have trusted John to assist them in executing their most critical transactions. His unique focus on corporate and healthcare law drives an efficient and client-oriented approach to executing transactions. John is Head of International Health M&A for the Firm. Read full biography: https://www.mwe.com/peopl...

As a partner in the Intellectual Property practice group, Jeff focuses his work on patent litigation and strategic counseling related to pharmaceutical, chemical, biotechnology, electrical engineering, agricultural and food products. A registered patent attorney with four decades of experience, Jeff has successfully represented both patent owners and patent challengers through all stages of federal litigation and appeals. A significant portion of Jeff’s practice includes advising pharma...

Conrad C. Nowak joined Corboy & Demetrio in 2023, bringing with him more than 18 years of defense litigation experience in the areas of personal injury, product liability, toxic tort, construction, aviation, trucking and commercial litigation. A former litigation partner at a national law firm, he successfully represented clients at numerous trials, mediations and arbitrations. He has harnessed that experience to better serve people and families who have suffered due to the negligence of ...

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.

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...

Ross O. Silverman is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Ross O., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ross O. is held by other top lawyers in the same geographic and legal practice area.

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.

Ian H. Fisher represents commercial clients ranging from small entrepreneurs to Fortune 100 companies. Ian has successfully litigated cases involving real estate, antitrust, trade secret misappropriation, restrictive covenant, consumer, contract, and business tort disputes. Ian has substantial experience defending against class action and navigating multidistrict litigation proceedings. He has successfully defended on appeal many of his trial court victories. He is skilled at identifying stra...

Matthew S. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Matthew S., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew S. is held by other top lawyers in the same geographic and legal practice area.

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...