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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

G

Glenn Herzog

Feb 01, 2026

Really helpful and compassionate service from everyone at Horn Williamson LLC's firm

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...

R

Roman Pouros

Feb 01, 2026

Excellent legal representation provided by Horn Williamson LLC for my Construction Law case

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...

G

Ginger Von

Feb 01, 2026

The absolute best in undefined for Construction Law - and I mean that from the bottom of my heart

I didn't think I'd find such a good lawyer in undefined, but here we are and I am thoroughly impressed. Horn Williamson LLC is just awesome and exceeded all my expectations. No complaints at all! They...

M

Matthew Brown

Feb 01, 2026

Excellent legal representation provided by Horn Williamson LLC for my Construction Law case

Horn Williamson LLC is fantastic and very professional. Don't hesitate to hire them if you're in undefined and need help. They really know their stuff and will go the extra mile to make sure you're ta...

S

Sheri Kihn

Feb 01, 2026

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

Everyone at Horn Williamson LLC's office in undefined was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never felt...