A senior attorney with 40 years of litigation experience, Mike has tried in excess of 200 jury trials to verdict in the state and federal courts of Pennsylvania, as well as other jurisdictions throughout the United States.
Mike is a former member of the firm's Board of Directors, and as a highly experienced litigator and trial attorney, he represents and defends clients in mass torts cases and complex general liability matters.
Mike began his law career in the Philadelphia District Attorney's office where he served as an assistant district attorney for five years. He then joined the civil litigation firm of Krusen, Evans and Byrne in Philadelphia, Pennsylvania. After trying numerous asbestos-related cases, he co founded the firm of Kelley, Jasons, McGuire & Spinelli in Philadelphia where he focused on the preparation and trial of complex personal injury, products liability, and criminal cases.
Honors & awards
American College of Trial Lawyers, fellow, 2019
AV Preeminent by Martindale-Hubbell
The Best Lawyers in America, Mass Tort Litigation/Class Actions - Defendants
2023-2026
The Best Lawyers in America, Criminal Defense: White-Collar
2024-2026
The Best Lawyers in America, Commercial Litigation
2026
International Academy of Trial Lawyers, 2023
Pennsylvania Super Lawyers
2019-2025
Year Joined
2007
Thought Leadership
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 is proud to highlight the firm’s 98 attorneys who have been recognized in the 2026 editions of The Best Lawyers in America and the Best Lawyers: Ones to Watch in America. Less than 6% of all practicing lawyers in the U.S.
Marshall Dennehey Announces 2025 Pennsylvania Super Lawyers and Rising Stars
May 22, 2025
Thirty-three attorneys across Marshall Dennehey's five Pennsylvania offices have been selected to the 2025 edition of Pennsylvania Super Lawyers magazine.
Marshall Dennehey Announces 2024 Pennsylvania Super Lawyers and Rising Stars
May 17, 2024
Twenty-eight attorneys across Marshall Dennehey's six Pennsylvania offices have been selected to the 2024 edition of Pennsylvania Super Lawyers magazine.
Michael L. Turner Elected a fellow of the International Academy of Trial Lawyers
Asbestos & Mass Tort Litigation
March 22, 2023
Michael L.
Marshall Dennehey Announces 2022 Pennsylvania Super Lawyers and Rising Stars
May 23, 2022
Thirty-four attorneys across Marshall Dennehey's six Pennsylvania offices have been selected to the 2022 edition of Pennsylvania Super Lawyers magazine.
Classes/Seminars Taught
Moderator, In-House Perspective 2021: Managing Relationships & New Technology From the Inside, Perrin Conference, February, 2021
Panelist, Insights on Diversity in the Legal Community, Perrin Conference, November 2016
Panelist, Legal Issues Arising in Trial Practice, Lawyers Club Philadelphia, May, 2016
How to Retain and Prepare Expert Witnesses, Philadelaphia Bar Institute CLE, March 2015
Moderator, Alternatives to Mock Trial: What You Can Learn With Less Cost, Breakout Session, DRI Asbestos Medicine Seminar, November, 2013
Panelist, Today's Jury Pool - The Impact of Generation 'Y' and the Social Media Revolution, American Bar Association Litigation Section's Corporate Counsel CLE Seminar, February, 2013
How To Conduct Effective Opening And Closing Statements, American Bar Association Section of Litigation, National Conference for the Minority Lawyer, 1999
Seminar, Direct and Cross Examination, Pennsylvania Bar Institute, 1989
Pro Bono Activities
Director, Univest Bank
Past President, Germantown Branch Board of Settlement Music School
Past President, Center City Crime Victim Services Board