Who We Are, and What We Do

The Law Firm of DiOrio & Sereni, LLP helps people, businesses and institutions throughout Southeastern Pennsylvania solve legal problems – and even prevent legal problems before they occur.  To learn more about the full range of our specific practice areas, please click here for our practice area overview page. We’ve received the highest peer-review rating of AV by our colleagues in the legal profession, according to the Martindale-Hubbell Bar Register of Preeminent Lawyers. Moreover our founders, partners Robert M. DiOrio and Mark A. Sereni, have been named to the Pennsylvania Super Lawyers list for each and every year since 2005.

Our Mission: We’re Committed ⋅ Connected ⋅ Respected ™

We’re committed to helping you solve your legal problem in an excellent, efficient and cost-effective manner; we remain connected with you every step of the way, maintaining an open line of communication with you, listening to your questions and concerns, and promptly answering and addressing them; and we strive to continue to be respected by both our peers in the legal profession and you, recognizing that we must first earn your respect.

What Makes Us Different and Exceptional: Larger Firm Capabilities, Smaller Firm Affordability, and Hometown Values 

These three attributes make us different and exceptional:

(1) we enjoy larger firm capabilities; 

(2) we offer smaller firm affordability; and

(3) we’re consistently guided by our hometown values – we treat you the way we expect to be treated.

Here’s How to Contact Us

To schedule an initial consultation, please contact us online or call us at 610-565-5700. For your convenience, we will arrange an evening or weekend consultation and even travel to meet with you, if necessary. We accept Discover, Visa and MasterCard.


Client Testimonials

“[Mark Sereni] is a consummate professional with high moral standards..." 

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“Once engaged, I immediately felt like a huge weight had been lifted.."

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“Bob DiOrio..was very dedicated...responsive, aggressive when necessary, and compassionate.."

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"Robert DiOrio heard about my case and...took my case to court and I got custody of my children."

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“If I had to choose one word to describe Mark Sereni and his associates it would be EXPERIENCED."

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The National Trial Lawyers

The Law Firm of DiOrio & Sereni, LLP, is located in Media, PA and serves clients in and around Media, Glen Riddle Lima, Brookhaven, Wallingford, Newtown Square, Lenni, Springfield, Swarthmore, Chester, Aston, Bryn Mawr, Morton, Woodlyn, Broomall, Gradyville, Folsom, Chester Heights, Crum Lynne, Glen Mills, Marcus Hook, Ridley Park, Drexel Hill, Marple, Bethel, Garnet Valley, Chadds Ford Concord, Chester County, Delaware County, Montgomery County, Philadelphia County.

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