Cozen O’Connor: Mullen, Jeffery R

Jeffery R. Mullen



(215) 665-6939

(215) 665-2013

Jeffery R. Mullen focuses his practice on construction law. Before becoming an attorney, Jeff worked for a regional contractor as a project manager, where he oversaw various residential, commercial, and public projects. Building upon that experience, Jeff’s practice is focused exclusively on the construction industry to assist clients in addressing the specific challenges they face before, during, and after project completion.

Jeff has counseled and represented owners, developers, contractors, and design professionals in all phases of construction projects and through the litigation and the alternative dispute resolution process. He has experience representing clients in disputes arising from a wide array of construction projects, including power plants, mass transit systems, highways, pipelines, dams, and commercial and residential building. In addition, Jeff counsels clients through contract formation and performance to identify, avoid and resolve disputes as a means of preventive risk management. He has experience drafting and negotiating design and construction contracts and proposals for projects ranging from commercial and residential renovations to major infrastructure improvements.

Jeff does pro bono and community work serving as trial counsel in cases ranging from the prosecution of prisoner civil rights matters to protecting the legal rights and interests of the elderly in the Greater Philadelphia Area against contractor fraud.

Jeff received his bachelor’s degree in business administration, magna cum laude, from Elizabethtown College where he was named Business Student of the Year. Jeff earned his law degree, summa cum laude, from Rutgers University School of Law. While at Rutgers, he served as managing editor of the Rutgers Journal of Law & Religion and was a legislative fellow at the Eagleton Institute of Politics and Government. 



Legal 500 Recognizes Six Cozen O'Connor Practice Areas and Nine Cozen O'Connor Attorneys in its 2019 Legal Guide

June 14, 2019

The Legal 500 United States named Cozen O’Connor’s Aviation, Construction, Immigration, Insurance, and Maritime practices and Cozen O'Connor attorneys Scott Bettridge, Raymond DeLuca, Geoffrey Ferrer, Bruce Ficken, David Heffernan, Jeffrey Lawrence, Robert Magovern, Anne Mickey, and Jeffrey Mullen to its 2019 Legal Guide.

Nationally Renowned Construction Law Practice Joins Cozen O’Connor

April 25, 2017

Four lawyers from Pepper Hamilton have joined Cozen O’Connor to spearhead the Construction Law Group. For more than three decades, these lawyers have successfully handled some of the largest and most complex construction litigation matters throughout the United States and abroad.


How the Miller Act May Help a Subcontractor Avoid the Effect of Subcontract Terms [The Legal Intelligencer]

August 04, 2018

Ray DeLuca, Fred Jacoby, and Jeff Mullen, attorneys in the firm's Construction Law Group, published, "How the Miller Act May Help a Subcontractor Avoid the Effect of Subcontract Terms" for The Legal Intelligencer.

Indemnity and Additional Insureds: Tools for Risk Shifting

August 22, 2017

Fred Jacoby, Ray DeLuca, and Jeff Mullen, of Cozen O'Connor's Construction Law Group, published, "Indemnity and Additional Insureds: Tools for Risk Shifting," in The Legal's Construction Law supplement.

Events & Seminars

Past Events

2019 Construction SuperConference

December 16, 2019 - Rancho Palos Verdes, CA


  • Rutgers University School of Law - Camden, J.D., summa cum laude, 2013
  • Elizabethtown College, B.S., magna cum laude, 2009

Awards & Honors

Legal 500 United States "Rising Star" for Construction Law 2019

  • Pennsylvania