Michael D. Winsko

Michael Winsko is a shareholder in the Casualty Department whose practice focuses on the defense of corporations, individuals, and local governments in complex civil litigation matters. In this capacity, he has successfully handled numerous high-exposure premises liability, liquor liability, trucking and transportation, products liability, and catastrophic injury/wrongful death actions throughout the state and federal courts of Pennsylvania. As a part of his practice, Mike assists clients in the defense of design and construction defects, trucking/automobile accidents, fall down incidents, and negligent security claims.

A native of the Pittsburgh area, Mike attended Duquesne University where he received an undergraduate degree in accounting in 2012. Mike then earned his juris doctor from Duquesne University School of Law in 2015. While in law school, Mike interned for Chief Judge Joy Flowers Conti of the United States District Court for the Western District of Pennsylvania. He also was a writer and the business managing editor for the Duquesne University School of Law's Business Law Journal. Prior to joining Marshall Dennehey, Mike worked for a regional firm in Pittsburgh, Pennsylvania focusing on various areas of civil defense litigation.

Honors & Awards

•The Best Lawyers: Ones to Watch, Transportation Law (2026)
•The Best Lawyers: Ones to Watch, Product Liability Litigation - Defendants (2021-2026)
•Pennsylvania Super Lawyers Rising Star (2023-2025)

Published Works

•'Bowman v. Sunoco Inc.: Preserving the Validity of Exculpatory Clauses Within Employment Contracts in Pennslyvania,' Duquesne Business Law Journal, Volume 16

Results

Defense Verdict Following Jury Trial in Slip and Fall Case in the Court of Common Pleas of Allegheny County.

The plaintiff slipped in the lobby of a commercial building and claimed a serious and ongoing injury to her right shoulder. She alleged she fell due to a wet floor caused by the facilities management’s cleaning process and the lack of sufficient visible wet floor caution signs. The plaintiff underwent two surgeries, claimed ongoing pain and suffering, and sought $500,000 prior to trial. We represented the building ownership and the facilities management company. Problematic for the defense was the lack of a surveillance video of the incident, photographs of the lobby contemporaneous to the incident, or an incident report. Despite this, we persuaded the jury to find for the defense by establishing a consistent and credible history of habitual practice in the placement of wet floor signs in highly visible areas across the lobby. We also won the credibility battle through our well-prepared witnesses. Although faced with a sympathetic plaintiff with a substantiated history of medical treatment, our attorneys succeeded by presenting the case using “old school” personal injury defense tactics that were necessary due to the lack of video, photographs, and documentation.

Defense Verdict Secured in Slip-and-Fall Jury Trial

We obtained a defense verdict following a three-day jury trial in a slip-and-fall injury case in the Court of Common Pleas of Allegheny County. The plaintiff slipped in the allegedly wet lobby of a commercial building and claimed a serious and ongoing injury to her right shoulder. Problematic for our case was the lack of a surveillance video of the incident, photographs of the lobby contemporaneous to the incident, or an incident report. Despite this, we persuaded the jury to find for the defense by establishing a consistent and credible history of habitual practice in the placement of wet floor signs across the lobby in highly visible areas.

News

98 Marshall Dennehey Attorneys Recognized in the 2026 Editions of The Best Lawyers in America and the Best Lawyers: Ones to Watch in America

August 20, 2025

Marshall Dennehey Announces 2025 Pennsylvania Super Lawyers and Rising Stars

May 22, 2025