Dennis R. Callahan

Dennis R. Callahan

Personal Injury Litigation - Defendants Product Liability Litigation - Defendants
Recognized in Best Attorney USA since 2016

About Dennis

Dennis has a special interest in disputes involving technical or scientific issues where he can utilize his engineering training. That technical training is also at the heart of his methodical and structured approach to representing his clients. His practice includes the defense of manufacturers, retailers, and property owners in a variety of product liability, pharmaceutical, and premises liability actions. In addition, Dennis represents businesses in commercial litigation, contract disputes, and business-related tort claims, and he has significant experience with the complex legal and factual issues that arise in retrospective and loss-sensitive insurance premium collection disputes.

Dennis has a special interest in disputes involving technical or scientific issues where he can utilize his engineering training. That technical training is also at the heart of his methodical and structured approach to representing his clients. His practice includes the defense of manufacturers, retailers, and property owners in a variety of product liability, pharmaceutical, and premises liability actions. In addition, Dennis represents businesses in commercial litigation, contract disputes, and business-related tort claims, and he has significant experience with the complex legal and factual issues that arise in retrospective and loss-sensitive insurance premium collection disputes.

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Reviews

4.5 / 5

37 Reviews

1,046 Profile Views

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Timothy Douglas

Jan 31, 2026

Top notch experts in Philadelphia - Dennis R. Callahan is by far the best lawyer I've ever had

Best lawyer for Personal Injury Litigation - Defendants law in Philadelphia. Period. I've seen others, but Dennis R. Callahan is on another level. They truly care about their clients and work hard to...

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Tyler McDermott

Jan 31, 2026

Excellent legal representation provided by Dennis R. Callahan for my Personal Injury Litigation - Defendants law case

If you need a Personal Injury Litigation - Defendants law lawyer, Dennis R. Callahan is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the...

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Willie Rolfson

Jan 31, 2026

Top notch experts in Philadelphia - Dennis R. Callahan is by far the best lawyer I've ever had

Dennis R. Callahan is fantastic and very professional. Don't hesitate to hire them if you're in Pennsylvania and need help. They really know their stuff and will go the extra mile to make sure you're...

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Matthew Mohr

Jan 31, 2026

So happy with the results of my case thanks to the hard work of Dennis R. Callahan and staff

Short and sweet: Dennis R. Callahan is the real deal and a true professional in the field of Personal Injury Litigation - Defendants law. If you're in Philadelphia and need help with your legal issues...

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Amy Schaden

Jan 31, 2026

Many thanks to Dennis R. Callahan for the hard work and dedication to my legal matter

If you need a Personal Injury Litigation - Defendants law lawyer, Dennis R. Callahan is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the...