Angelo Theodosopoulos, Esq.

Messa & Associates - Angelo Theodosopoulos


attorney at law

Angelo Theodosopoulos, Esq. concentrates his practice on catastrophic injury litigation, with emphasis on medical malpractice, motor vehicle collisions, and products liability. Angelo is also fluent in Greek.

About mr. theodosopoulos

Angelo Theodosopoulos, originally from Chicago, received a full scholarship from the University of Kentucky for his accomplishments as a nationally ranked high school debater. He received his undergraduate and graduate degrees in five years, earning a Bachelor of Arts Degree in Political Science and a Master’s Degree in Public Administration. In 2011, Mr. Theodosopoulos earned his juris doctor from The Dickinson School of Law at Penn State University. After graduating from law school, Mr. Theodosopoulos worked as a law clerk for the Honorable William E. Baldwin in the Twenty-First Judicial District of Pennsylvania.

Attorney Theodosopoulos is admitted to the bars of the Commonwealth of Pennsylvania and the State of New Jersey. He is also admitted to practice law in Federal Court for the Eastern District of PA. 

professional achievements

Angelo Theodosopoulos was selected for inclusion on the Pennsylvania Super Lawyers Rising Stars list from 2015-2021. He was also named to The National Trial Lawyers Top 40 Under 40 for Civil Plaintiffs from 2016-2018. Mr. Theodosopoulos is a current member of the Philadelphia Trial Lawyers Association and the Future Leaders branch of the Pennsylvania Association for Justice.

beyond the courtroom

Mr. Theodosopoulos lives in Delaware County with his wife and son, and their dogs, Bella and Ollie. Angelo and his family are parishioners at St. Luke’s Greek Orthodox Church in Broomall, Pennsylvania.

Messa & Associates - Angelo Theodosopoulos

Notable Victories

$15 Million judgement and confidential settlement against multiple defendants in a trucking crash case that resulted in the tragic death of a four-year-old girl.

$1.875 Million motor vehicle settlement for a couple who sustained serious orthopedic injuries when their stopped car was rear ended by a speeding work van and propelled across traffic lanes until it crashed against a utility pole on the side of the road.

$1.5 Million premises liability settlement for a 74-year-old woman who sustained permanent injury to her hip after slipping on an untreated patch of ice at Philadelphia nursing home, Chapel Manor of Genesis Healthcare.

Confidential multi-million medical malpractice settlement for client who suffered preventable injury during heart surgery.

Confidential seven figure premises liability settlement for child who was crushed by a tree in a Philadelphia park.

$650,000 medical malpractice settlement on behalf of a 55-year-old New Jersey man whose lung cancer diagnosis was delayed nine months causing a 3cm tumor to grow into a 7cm tumor. The victim underwent surgery to remove the lung tumor, followed by chemotherapy.

$500,000 motor vehicle settlement on behalf of a pedestrian who sustained a closed head injury after she was hit by a car. The victim experienced concussion symptoms that affected her work and family life. 

contact details


123 S 22nd St. Philadelphia, PA 19103