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Justin N. Leonelli

Justin N. Leonelli is an associate in the firm’s Pittsburgh office. Justin focuses his practice on dispute resolution with an emphasis on construction and infrastructure, complex commercial litigation, international arbitration, and energy disputes.  

As a part of his construction practice, Justin represents owners, general contractors, subcontractors, suppliers, and design professionals in a variety of public and private construction disputes nationwide. He handles all construction-related claims, including delay claims, defective construction claims, mechanic’s lien claims, bonding disputes, and differing site condition claims, among many others. Justin also assists in negotiating and drafting construction contracts for a wide range of projects.  

In addition, Justin regularly represents clients in complex commercial litigation and international arbitration disputes involving breach of contract, fraud, UCC-claims, and business tort claims. Justin also has significant experience representing entities in the energy industry, including mid-stream entities, natural gas exploration companies, and coal burning facilities, in a variety of lawsuits arising from their operations.  

Alongside his legal practice, Justin is actively involved in the Pittsburgh community. He serves on the board of directors for a non-profit organization focused on providing apprenticeship programs for individuals seeking employment in the manufacturing industry. He also serves on the firm’s associates’ committee for the Pittsburgh office.

Prior to joining the firm, Justin was a litigation associate at a Pittsburgh-based law firm where he focused his practice on commercial disputes and handled matters involving the construction, energy, and manufacturing industries. In addition, he was a legal intern for the nation’s largest provider of shared communications infrastructure, Crown Castle. During law school, Justin served as an extern to the now-Pennsylvania Supreme Court Justice David. N. Wecht.

  • Allegheny County Council Proclamation
  • CALI Excellence for the Future Award, Legal Research & Writing
  • CALI Excellence for the Future Award, Advanced Legal Writing: Writing in Law Practice
  • Best Appellate Brief in Academic Mock Appeal
  • New Century Careers, Director
  • Allegheny County Bar Association — Construction Section, Member
  • Allegheny County Bar Association — Young Lawyers Division, Member
  • Instant Communication and Advances in Technology: Exchanging Ethical Dilemmas and Increased Expectations for Convenience and Efficiency, Dean John J. Sciullo Fundamentals of Law Continuing Education Series (April 25, 2015).

Justin grew up in Youngstown, Ohio where he attended Cardinal Mooney High School. He now resides in a northern suburb of Pittsburgh. In his spare time, Justin likes to golf and visit with family and friends.

Additional Thought Leadership Pages
  • United States EPC Construction Contracting in the Wake of COVID-19, Construction Alert, 03 April 2020
  • Amendments to Federal Rule of Evidence 902, The Legal Intelligencer, 1 November 2017
  • Dormant Commerce Clause Review of a Lifecycle Analysis Regulation: Rocky Mountain Farmers Union v. Corey, 3 Joule Energy & Envtl. L.J. 2, 11 November 2014
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