Nicholas Ktenas

Mr. Barton practices business law, representing both public and private clients in a variety of transactions and specializing in middle-market company M&A, reorganizations, and work-outs. Mr. Barton has extensive experience in both domestic and international transactions, including Australia, Canada, and Mexico. From 1992 to 1997, Mr. Barton was vice president, general counsel, and secretary of Sizzler and remained in charge of the company’s legal affairs throughout its chapter 11 r...

Christopher Wilson, a partner in the firm's Litigation practice and managing partner of the Chicago office, represents clients in a variety of complex commercial litigation matters. He has represented a number of Fortune 500 companies in high stakes cases, including The Boeing Company in connection with shareholder derivative actions involving the Dreamliner 787, Microsoft Corporation in trade secrets and piracy matters, Amazon.com in qui tam actions arising under the Illinois Whistleblower A...

Trial lawyer Ira Sherman has built his reputation on aggressive and creative litigation strategies to successfully represent injured victims and victims of discrimination. Known for his dedication to the cause, Mr. Sherman has established himself as one of the area's leading advocates.Mr. Sherman joined Mr. Chaikin in April 1980. Upon Mr. Chaikin's retirement in December 1999, he became the senior and managing partner of Chaikin, Sherman, Cammarata & Siegel, P.C. Mr. Sherman and the law f...

Jesse J. Camacho is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Patent Law. Jesse J., who practices law in Kansas City, Missouri, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jesse J. is held by other top lawyers in the same geographic and legal practice area.

Keith Forman is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs. Keith, who practices law in Baltimore, Maryland, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Keith is held by other top lawyers in the same geographic and legal practice area.

Cynthia Mazareas has more than 30 years of experience in serving as a trusted adviser to companies in the life sciences industry. She applies her deep knowledge to provide strategic business counsel to boards, management teams and in-house counsel, representing high-growth private and public companies in day-to-day corporate matters and helping companies navigate through complex business transactions. Ms. Mazareas is Chambers recognized, named in Best Lawyers in America for biotechnology and ...

Charlie is originally from Harrisburg, South Dakota. He attended Southwest Minnesota State University for his undergraduate degree, and the University of Nebraska School of Law. He is married with three children, who keep him busy day and night. He is a avid sports fan and loves watching and participating in anything competitive. Charlie loves the practice of law, primarily because of the people he works with. He has devoted himself to the workers’ compensation field since he began prac...

Bernard M. (Bernie) Resser is a nationally recognized, first-chair litigator. As a former federal prosecutor with over 40 years of significant litigation experience, he delivers winning results for a diverse and sophisticated business clientele. His revolutionary use of state-of-the-art technology serves to maintain his on-going success. Bernie’s client-centric approach expeditiously achieves successful dispute resolution through strategic motions and mediation and, when necessary, tria...

Brad Y. Chin is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Brad Y., who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brad Y. is held by other top lawyers in the same geographic and legal practice area.

M. Curtis Whittaker has been a shareholder of the firm since 1991. Curt heads the firm’s Energy Practice Group, and is a member of the Corporate/Business Law Group. Curt works with developers, owners, operators, investors and lenders in the alternative energy area, including biomass, hydropower, wind, solar, cogeneration and alternative fuels. While at Harvard Law School, Curt took aim at a career in the alternative energy sector by authoring a law review article on the history of hydro...