John A. Greenhall: Lawyer with Cohen Seglias Pallas Greenhall & Furman PC

John A. Greenhall


Peer Rating
AV® Preeminent

Client Rating

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Practice Areas

  • Construction
  • Electronic Discovery & Document Retention
  • Green Building
Contact InfoTelephone: 215.564.1700
Fax: (267) 238-4404
University Franklin & Marshall College, B.A.
Law SchoolGeorge Washington University National Law Center, J.D.
Admitted1987, Pennsylvania and New Jersey; New York


•Philadelphia Bar Association
•Pennsylvania Bar Association (PBA)
•New Jersey State Bar Association (NJSBA)
•American Bar Association (ABA) - Member; Forum on the Construction Industry, and Tort and Insurance Practice Section (Fidelity and Surety Law Committee)
•National Precast Concrete Association (NPCA)
•National Electrical Contractors Association (NECA)
•U.S. Green Building Council New Jersey Chapter
•Delaware Valley Green Building Council (DVGBC)
•American Institute of Architects, Philadelphia Chapter (AIA)


JOHN A. GREENHALL is the Secretary of Cohen Seglias Pallas Greenhall & Furman PC as well as a Shareholder and member of the Board of Directors. In addition, he is a Partner in the Firm's Construction Group. John has been with the Firm since its inception, starting as the sole associate. He served as Managing Partner from 2000 through the end of 2010.

John's clients hail from all areas of the construction industry and include general contractors, subcontractors, architects, engineers, sureties and owners. He has handled cases on both the state and federal levels in a multitude of jurisdictions, including Pennsylvania, New Jersey, New York, Maryland, Virginia, Illinois, Indiana, Minnesota, Florida and West Virginia. He has argued cases on the appellate levels in Pennsylvania, New Jersey, West Virginia and Minnesota. John is also a proponent of alternative dispute resolution (ADR) processes including mediation, arbitration and mini-trials. He has arbitrated numerous construction disputes and has been selected to serve on the commercial arbitration panel of the American Arbitration Association. He has also mediated in dozens of cases in this arena. He is adept in negotiating contracts and responding to questions that arise during the construction process. In addition, John has developed a growing E-discovery practice.

John has served as general counsel to the Delaware Valley Association of Structural Engineers. He has frequently lectured and written on topics that include construction claim documentation, contracts, suretyship, indemnity agreements, alternate dispute resolution and construction delay claims.

News & Publications

•CASPA's Reach Challenged
Construction in Brief: 2015 Volume 2
•Q&A with Our Partners
Construction in Brief: 2013 Volume 4
•Look Before You Leap: Know the Law Before Joining the Housing Boom
Construction Today - July/August 2013
•Cohen Seglias Attorneys Named 2013 Super Lawyers and Rising Stars
May 17, 2013
•Avoid Exposure: Proactive Claim Preservation and Insulation Practices
Precast Inc. - March/April 2013
•NJ Bill Would Nix No-Bid Contracts For Port Authority
Law360 - January 29, 2013
•Avoid Paperless Panics
Building and Construction Northeast - Winter 2013
•Why You Need an Electronically Stored Information Plan
Construction In Brief: Winter 2012
•Get It in Writing
Precast, Inc. - July/August 2012
•Cohen Seglias Attorneys Named 2012 Super Lawyers and Rising Stars
May 2012
•Crossing State Lines: A Comparison Of Competitive Bidding Laws In New York And New Jersey
New York County Construction Law Journal - May, 2012
•Cohen Seglias Attorneys Named Super Lawyers and Rising Stars
June 2011
•Two Cohen Seglias Lawyers Elected to the Board of the Building Industry Association of Philadelphia
July 2, 2007


•NECA Seminar: Just Because You Are Right Doesn't Mean You Will Win
March 3, 2015 - Nashville, TN
•NECA Seminar: Just Because You Are Right Doesn't Mean You Will Win
January 13, 2015 - Pittsburgh, PA
•Making Changes and Resolving Disputes During the Construction Process
November 7, 2014 - Allentown, PA
•ERMCO Presentation
July 29, 2014 - Indianapolis, IN
•NECA Central Indiana Chapter Summer Meeting
June 19, 2014 - Indianapolis, IN
•ABC Eastern: Electronic Discovery and Document Retention Seminar
May 7, 2013 - East Norriton, PA
•Half-Moon Seminar: Legal Issues in Sustainable Design and Construction
April 30, 2013 - Fort Washington, PA
•NECA Penn-Del-Jersey Chapter: Electronic Document Retention Seminar
February 21, 2013 - King of Prussia, PA
•Electronic Document Retention: How You Are Handling E-Documents Can Be Critical to Your Company's Survival
September 12, 2012 - Philadelphia, PA
•Hot Topics Over Hot Breakfast Seminar - Best Value Contracting
April 03, 2012 - King of Prussia, PA
•The Precast Show 2012
March 1-3, 2012 - Orlando, Florida
•Construction Law: From A-Z
February 5, 2009 - King of Prussia, PA
•Construction Law: From A to Z (PDF)
December 9, 2008 - Philadelphia, PA
•Translating Principle to Practice: Working with the New AIA 2007 and Consensus DOCS
July 22, 2008
•Current Legal Issues Facing the Construction Industry
April 4, 2007 - Philadelphia, PA


•Is My Surety the Same As My Insurance Carrier? Not So Much Says a Federal Court in Pennsylvania
July 12, 2013
•Attention Pennsylvania Home Builders: The Warranty of Habitability May Extend to Subsequent Purchasers
January 11, 2013


•John was named a Super Lawyer in the field of Construction Law by Law & Politics Magazine in the 2009 Corporate Counsel edition and a Pennsylvania Super Lawyer in the field of Construction Litigation in 2011, 2012, 2013, 2014 and 2015. Law & Politics Magazine publishes Super Lawyers annually to recognize accomplished lawyers in more than 70 areas of practice.
•John has achieved an AV Preeminent Peer Review Rating for professional ethical standards and legal ability by Martindale-Hubbell. (Also at Pittsburgh Office)


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Office Information

John A. Greenhall

30 South 17th Street
PhiladelphiaPA 19103


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