• Skilled.
  • Trusted.
  • Fearless.

Horn Williamson & Collins provides legal services to general contractors, subcontractors, homeowners, community associations, and business owners involving a variety of commercial and residential matters. Call us at 215.987.3800.

Practice Areas

Background image featuring a close-up of wooden framing at a construction site, overlaid with a solid orange tint. Commonly used in branding or marketing materials related to construction or building services.

Construction

Built on experience
Overhead view of construction workers in hard hats reviewing building plans—illustrating site coordination, construction oversight, and potential areas for defect claims.

Residential Construction Defects

Providing clarity for complex issues
Row of partially constructed residential homes with exposed sheathing and unfinished windows—highlighting issues related to construction defects in new housing developments.

Commercial Litigation

Helping businesses navigate disputes
Modern multi-story condominium building with balconies—representing multi-family residential structures often involved in construction defect and community association matters.

Community Association

Going beyond the bylaws
Close-up of hands reviewing architectural blueprints—highlighting construction planning, design defects, and issues that can lead to disputes in construction litigation.

Real Estate and Title Closing Practice

Providing real estate and title services throughout the region
Silhouetted construction workers reviewing plans and pointing on site—representing construction project oversight and contractor coordination, common in construction litigation and defect claims.

Alternate Dispute Resolution

Creative and cost effective resolution to legal disputes

Our team provides legal services to a diverse client base at all stages of the construction process. From the design phase through the conclusion of construction and beyond to include litigation involving construction failures and homebuilders’ defects, we stand ready to guide our clients through their legal challenges.

We look to the law, and in some cases advocate for the law to be rewritten. And it has been. Our biggest wins come from advocating for the rights of our clients. We do that every day.

Jennifer M. Horn

Meet Our Team

Jennifer M. Horn
Jennifer M. Horn
Carter N. Williamson
Carter N. Williamson
Ryan M. Lockman
Ryan M. Lockman
Matthew C. Collins
Matthew C. Collins
Matthew H. Dempsey
Matthew H. Dempsey
Judge Gene D. Cohen (Ret.)
Judge Gene D. Cohen (Ret.)
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News • Blog • Events

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Three Horn Williamson & Collins Attorneys Recognized by Best Lawyers® in 2027 Editions

Three Horn Williamson & Collins attorneys have been recognized in the 2027 editions of The Best Lawyers in America® and Best Lawyers: Ones to Watch® in America for their work in construction law and workers’ compensation law in Philadelphia. Best Lawyers recognitions are based on peer review, with attorneys evaluated by other lawyers practicing in […]

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News
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What Happens When a Construction Defect Fight Goes Viral?

I started following Dillon and Suzanne White (otherwise known as @dadchats, @momchats, and @famchats) for their hilarious and relatable content, including an attorney father trying to keep up with his whip-smart wife, disarmingly clever kids, and allegedly murderous dog, Goose. Recently, however, my favorite influencer family has gone viral for a decidedly unfunny situation: an […]

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Blog
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2023 Keystone Executive Leadership Retreat

Horn Williamson is a proud sponsor of the Community Associations Institute 2023 Keystone Chapter’s Executive Leadership Retreat. The retreat will be held in historic Gettysburg, PA October 11-13.

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Event

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