Overview

EXPERIENCE NAVIGATING CONSTRUCTION AND COMMUNITY ASSOCIATION CHALLENGES

HORN WILLIAMSON, LLC is a law firm located in Center City Philadelphia that serves clients throughout the Mid-Atlantic region. We focus our practice on all aspects of construction claims, commercial disputes, and community association law. We represent business owners, developers, homeowners, general contractors, subcontractors, material suppliers, as well as community associations and cooperatives. Our firm provides clients with the highest quality legal representation and is committed to excellence both in and out of the courtroom. With more than eighty-five years of combined legal experience in matters related to the construction and community association industries, we are committed to helping our clients resolve their legal issues in a prompt and efficient manner.

A PRACTICAL APPROACH TO RESOLVING LEGAL ISSUES

We understand that litigation is not always in our clients’ best interest. We take a practical and straightforward approach to resolving legal issues to best serve our clients’ needs. We will thoroughly evaluate your situation, listen to you and inform you of the risks of pursuing certain strategies.

FOR COMMERCIAL CLIENTS: A FRESH INTEGRATED APPROACH TO TRADITIONAL LAW PRACTICE

Whether Horn Williamson attorneys are representing large and mid-sized commercial contractors, property owners, developers, business owners or employers, we are ready at every business milestone, and at every stage of litigation. Our attorneys assist clients with an array of construction matters including contract review and negotiation, scopes of work, change orders, delays, mechanics’ liens and payment disputes. Prior to construction, our attorneys draft and negotiate the full panoply of construction contracts from AIA, modified AIA, consensus to individualized contracts. During construction, we assist with project documentation and claims. Through Judge Gene D. Cohen (Ret.), the firm offers alternative dispute resolution for Fee disputes, Intra-law firm difficulties and Inter-law firm disputes. The Firm offers construction accident defense, representation during OSHA investigations and other regulatory matters, as well as ERISA litigation.

FOR RESIDENTIAL CLIENTS: ANALYTICAL APPROACHES BASED IN BUILDING SCIENCE AND ENGINEERING

Horn Williamson offers a unique and vigorous approach to protecting homeowners’ most valuable investment. The firm fills an unmet market need for experienced construction attorneys who represent families whose homes are damaged by water intrusion and building envelop defects. Combining analytical approaches based in building science and engineering, as well as years of experience representing the construction industry, Horn Williamson attorneys draw on unique skill sets to solve complex and thorny problems.

FOR COMMUNITY ASSOCIATION CLIENTS:

Our Community Association Group provides our clients with practical and strategic legal guidance on every aspect of Community Association Law. From day-to-day operations to multimillion dollar construction defect litigation and everything in between, we stand ready to guide community associations through all their legal challenges. We become an integral part of our clients‘ professional team.

Size:
21
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Practice Areas:
13
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Best Lawyers Recognized:
3

Rankings

National

Tier
3
National Ranking
Construction Law

Regional

Philadelphia

Tier
2
Philadelphia
Construction Law

Rankings

National

Tier
3
National Ranking
Construction Law

Regional

Philadelphia

Tier
2
Philadelphia
Construction Law

Practice Areas

Horn Williamson LLC has been ranked by Best Law Firms for excellence in 1 specialty, reflecting the firm's commitment to delivering outstanding legal services.
Additionally, the firm provides services in these practice areas:
  • Arbitration
  • Commercial Litigation
  • Community Association Law
  • Construction Law
  • Consumer Protection Law
  • Employee Benefits (ERISA) Law
  • Government Contracts
  • Litigation - Construction
  • Litigation - ERISA
  • Litigation - Real Estate
  • Mediation
  • Personal Injury Litigation - Plaintiffs
  • Real Estate Law

Individuals Recognized in The Best Lawyers in America®

Horn Williamson LLC proudly has 3 lawyers recognized for their outstanding professional performance in the 2025 edition of The Best Lawyers in America®. This peer-reviewed honor highlights individual excellence and directly qualifies the firm for consideration in the prestigious Best Law Firms rankings. For over four decades, Best Lawyers has been the gold standard for recognizing top legal talent, serving as the cornerstone for Best Law Firms awards. Learn more about our rigorous Best Lawyers research and selection process.
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Offices & Contacts

Philadelphia, PA
Two Penn Center, Suite 1700
1500 JFK Boulevard
Philadelphia, PA 19102
United States
Jennifer Allegra
Director of Operations
Director of Community Association Services/Marketing
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