John I. McMahon, Jr.

About John

John I. McMahon, Jr. possesses over thirty-two years of experience as a trial lawyer in Eastern Pennsylvania, with a distinguished record in both high-profile criminal defense cases and serious personal injury claims. He previously served as an Assistant District Attorney in Montgomery County, prosecuting homicide and narcotics cases. He has achieved over 100 Not Guilty verdicts in jury trials and is a strong advocate for treatment over incarceration for addicted clients.

Licensed States

Education

Colleagues at McMahon, Lentz & Thompson

John I. McMahon, Sr.

(1959-2004)

Brooks T. Thompson

Attorney

Erin C. Lentz-McMahon

Attorney