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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

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Bernice Cormier

Feb 01, 2026

Horn Williamson LLC did a great job handling my complex Construction Law case from start to finish

I appreciate how Horn Williamson LLC handled my case. No fluff, just straight to the point and very effective representation for my Construction Law matter. They are obviously very experienced and kno...

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Hector Kemmer

Feb 01, 2026

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

Super helpful and professional staff at Horn Williamson LLC's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and lega...

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Antoinette Bechtelar

Feb 01, 2026

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

I wasn't sure who to call for my Construction Law problem, but I'm so glad I went with Horn Williamson LLC. They really listened to me and understood my situation. It was such a relief to have someone...

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Harriet Bayer

Feb 01, 2026

Reliable lawyer you can count on - Horn Williamson LLC provided excellent service throughout

I've worked with a few lawyers in undefined over the years, but Horn Williamson LLC stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I...

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Mike Schaefer

Feb 01, 2026

Simply amazing representation from Horn Williamson LLC's office during my recent legal matter

If you're looking for someone who actually cares and will fight for you, go to Horn Williamson LLC. They helped me out big time with my Construction Law issue and kept me informed at every step of the...