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Dion G. Rassias

Trial Attorney
Dion G. Rassias
Trial Attorney

As recognized by American Lawyer Media, “Dion meets that supreme standard of being a ‘lawyer’s lawyer’. That is to say, if I were in trouble, I would want him representing me.” In a world where everyone claims to be a “trial lawyer”, Dion really is. He has stood victorious in the courtroom in all types of cases, from cases involving catastrophically injured members of our community, to business disputes, complex litigation(s) and insurance matters. As you will see, trying cases is what he does.

Dion has tried and settled a growing list of cases covering a diverse and broad spectrum of legal issues, which have resulted in over $285,000,000 million in verdicts and settlement values for people and families who have been catastrophically injured and damaged as the result of medical malpractice, professional malpractice, partnership disputes and law firm disassociations, defamation and false light, products liability, civil rights violations, discrimination and harassment, and related personal injury actions. In addition, he has tried and settled many complex commercial litigations involving business disputes, antitrust claims, contracting disputes, healthcare issues, bank fraud and trade secret litigation. He even sued the Board of Ethics in Philadelphia and won a published retraction on its claims alleging campaign finance violations. Simply put, his legal practice is as uniquely diverse as all of the people and businesses he has successfully represented.

Dion’s cases have been covered by some of the most significant media outlets all over the world, and his clients have included Taylor Swift, former heavyweight boxing champion Larry Holmes, Baseball Hall of Fame’s Harry Kalas, as well as numerous elected officials throughout the Tri-State area, including Mr. Justice Seamus P. McCaffery, whose lawsuit against The Philadelphia Inquirer has been described as one of the most significant First Amendment cases in the history of Pennsylvania.

He also represented former Philadelphia Eagles All-Pro Chris Maragos as a result of a career-ending knee injury and obtained a unanimous $43.5 million jury verdict against Rothman Orthopaedics and the University of Pittsburgh Medical Center as a result of their respective negligent medical treatment.

In one of his most recent birth injury cases, the trial judge considered the motion to approve a settlement that is expected to provide nearly $30 million to the minor plaintiff, and in issuing the order of approval, stated “It’s the easiest decision I’ll make this month…in a case that obviously could have lost…this was an easy decision [and] I can’t imagine any judge in this state or any other state rejecting this particular settlement…. So as they say, it’s a no brainer.”

Dion had two of the top 50 “awards and settlements” in Pennsylvania in 2023, and both were unanimous jury trial verdicts

Dion G. Rassias
Trial Attorney

Education and Background

Dion grew up in Asbury Park, New Jersey and Wilmington, Delaware. He completed his undergraduate studies in three (3) years at Stanford University and Dickinson College (B.A. 1984). He graduated from Duquesne University School of Law (J.D. 1987), where he was an academic selection to the Law Review, and a two-time trial moot court champion. He is admitted to practice in the bars of Delaware, Pennsylvania, Massachusetts, New Jersey, New York, the District of Columbia, the United States Supreme Court, the United States Court of Claims, and the numerous corresponding Federal Courts in the states where he is admitted. He serves on various professional committees and associations and also maintains an extensive pro bono commitment.

It's your case, but it's his reputation. When smart people have done bad things to you, you’ll want someone with Dion’s experience, tenacity and background on your side.

Accomplishments & Honors

By Order of the Pennsylvania Supreme Court, Dion was the Chair of the Disciplinary Board of Pennsylvania in 2023 through April of 2024.  The Disciplinary Board is an independent agency under the Supreme Court’s jurisdiction, and was created to assist the Supreme Court in all matters involving attorney licensing and discipline.  Dion was first appointed by the Supreme Court to the Disciplinary Board in 2018 and reappointed in 2021. Dion served as the Vice Chair of the Board in 2022-2023 and Chair of the Board’s Rules Committee from 2019 through 2021. From 2010 through 2016, Dion served the Disciplinary Board of the Supreme Court of Pennsylvania as a Hearing Officer.

In April of 2022, Dion served as the moderator for the television coverages of The Pennsylvania Superior Court’s en banc oral arguments.  This is the third time that Dion has been a television moderator for The Superior Court, having covered the 2011 and 2007 en banc oral arguments at the National Constitution Center in Philadelphia.  Dion provided case introductions, commentary and analysis of the Court arguments.

Since 2021, Dion has been voted as a Top Lawyer in Delaware County by The Daily Times Readers’ Choice in an unprecedented three categories: Trial, Malpractice and Product Liability.

Dion has been repeatedly selected as a Pennsylvania ‘Super Lawyer’ by Philadelphia Magazine and Law & Politics and has been recognized for decades as being in the Top 100 lawyers in the Commonwealth of Pennsylvania and also the Top 100 of lawyers in Philadelphia since the inception of “Super Lawyers” in 2004. This recognition is based upon a survey of over 34,000 lawyers and judges from the Commonwealth to determine the top 5% of attorneys practicing in Pennsylvania, and can be viewed in the “Ultimate Guide to the Top Lawyers in Pennsylvania”, found at

In 2017, Dion was recognized with a Lifetime Achievement selection as one of America’s Top 100 Attorneys.

Dion has a “Superb 10.0” rating from

Dion has a “Judicial AV Preeminent” rating from Martindale-Hubbell.

He is a member of The National Trial Lawyers Top 100.

He is also a member of the Million Dollar Advocates Forum and the Multimillion Dollar Advocates Forum.

Dion serves as a Judge Pro Tempore for the Court of Common Pleas of Philadelphia County.

Dion is a member of the most exclusive group of plaintiffs’ attorneys in the United States, The Summit Council. The Summit Council is by invitation only, and its criteria for membership is the most selective and rigorous of any such group across the country.

In June of 2010 he was appointed by the Pennsylvania Senate to participate in the Joint State Government’s Commission (Senate Resolution 344 of 2010), to study and investigate the criminal justice system in Philadelphia and to develop solutions for the problems involving high violent crime rates, low conviction rates, the bail system, witness intimidation and other matters of significant and important public interest. This advisory committee is comprised of approximately thirty judges, lawyers and prosecutors.

From 2002 until 2010, Dion sat as a member of the Architects Licensure Board. Pennsylvania governors Edward G. Rendell, in 2006, and Mark S. Schweiker, in 2002, appointed Dion, with the advice and consent of the Pennsylvania Senate, to serve on the Board for two 4 year terms. This Board, acting under Pennsylvania’s Department of State, is responsible for licensing, investigating and disciplining the Commonwealth’s architects.

In January of 2004, he was appointed by the Pennsylvania Senate as a member of the Joint State Government Commission Task Force on Real Property Law (Senate Resolution 244 of 2002). This Joint Commission is a standing group of attorneys and judges from across the Commonwealth who provide legal experience and advice to assist the General Assembly by recommending improvements and changes to Pennsylvania laws.

In October of 2003, Dion was selected by America Lawyer Media, The Legal Intelligencer and the Pennsylvania Law Weekly, as one of Pennsylvania’s forty best lawyers under the age of 40. This award represents the Pennsylvania legal world’s recognition of lawyers across the state who have worked tirelessly in their professional, personal and civic lives to improve the legal landscape and the future of others.

In May of 2002, he was requested to testify before the Pennsylvania Senate Judiciary Committee on Senate Bill 1376, on Joint and Several Liability. His diverse experience representing corporations, plaintiffs and insurance defendants helped clarify and articulate issues and concerns about the proposed legislation.

In January 2001, he became one of the youngest members ever appointed by the Justices of the Supreme Court of Pennsylvania to serve as a member of the Appellate Court Procedural Rules Committee, the group which drafts and revises the rules which govern appellate practice in Pennsylvania.

Dion has published in Butterworth’s Journal of International Banking and Financial Law, and has been approved by Continuing Legal Education, Inc. to provide continuing education lectures in the states of Pennsylvania, Delaware, Florida, and California. He has provided accredited CLE for Montgomery County Bar Association and was a Keynote seminar presenter at the 2004 Luzerne County Bench/Bar Seminar on the topic of Appellate practice.

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