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Horn Williamson LLC

Philadelphia, Pennsylvania
THE BEST LAWYERS IN AMERICA® AWARDS:: 3 BEST LAWYERS: ONES TO WATCH® IN AMERICA AWARDS:: 1 BEST LAW FIRMS® AWARDS:: 2
4 Attorneys

About Horn Williamson LLC

Office Locations

Philadelphia, PA Headquarters

Two Penn Center, Suite 1700, 1500 JFK Boulevard, Philadelphia, PA 19102

215-987-3800

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Wilmington, DE

1201 N. Orange Street, Suite 7697, Wilmington, DE 19801

302-268-6236

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Leadership Team

Jennifer M. Horn

Founding Partner

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Carter N. Williamson

Partner

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Ryan Lockman

Managing Partner

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Matthew C. Collins

Chair of Community Association Practice Group

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Matthew H. Dempsey

Partner

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Judge Gene D. Cohen (Ret.)

Inside General Counsel

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Margaret M. Underwood

Of Counsel

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Awards & Recognition

Featured Awards

THE BEST LAWYERS IN AMERICA® AWARDS: 3

BEST LAWYERS: ONES TO WATCH® IN AMERICA AWARDS: 1

BEST LAW FIRMS® AWARDS: 2

Key Contacts

Jennifer M. Horn

Founding Partner

215-987-3800

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Denise Adamic

Director of Community Association Services/Marketing

484-845-5708

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Jennifer Allegra

Director of Operations

215-987-3800

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Reviews

4.4 / 5

49 Reviews

A

Aaron Barton

Feb 01, 2026

Great people who truly care at Horn Williamson LLC - the best legal team in undefined

I've already told all my friends and family about Horn Williamson LLC. If you need Construction Law help in undefined, they're the ones to see without any doubt. They are local experts who really unde...

B

Beth Schultz

Feb 01, 2026

So glad I called Horn Williamson LLC to handle my Construction Law case in undefined

Horn Williamson LLC has been doing this since a long time ago, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal matters in undefin...

D

Debra Kerluke

Feb 01, 2026

A very good experience overall with the entire team at Horn Williamson LLC's legal practice

It's hard finding a reliable lawyer these days, but Horn Williamson LLC in undefined is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, respo...

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Priscilla Tromp

Feb 01, 2026

So glad I called Horn Williamson LLC to handle my Construction Law case in undefined

Just wanted to say a huge thanks to Horn Williamson LLC and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without the...

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Harriet Rohan

Feb 01, 2026

Many thanks to Horn Williamson LLC for the hard work and dedication to my legal matter

If you need a Construction Law lawyer, Horn Williamson LLC is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case. I fel...