Atty. John Alan Greenhall

Atty. John Alan Greenhall

John Alan Greenhall is a lawyer practicing construction, contracts / agreements, arbitration and 2 other areas of law. John received a B.A. degree from Franklin & Marshall College, and has been licensed for 39 years.

Philadelphia Philadelphia 39 yrs experience 39 year
Call (914) 460-3550 Book Appointment

Profile Summary

About John Alan Greenhall at a glance

John Alan Greenhall is a Partner based in Philadelphia, Pennsylvania, practicing at Cohen Seglias Pallas Greenhall & Furman PC. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on contracts and adr. Admitted to practice in New Jersey (1987), Pennsylvania (1987), and New York (2013). Educated at George Washington University National Law Center J.D. (—) and Franklin & Marshall College B.A. (—). Recognitions include AV Preeminent. Active member of S and DVGBC) •American Institute of Architects, Philadelphia Chapter (AIA) •New Jersey Alliance for Action •Associated Builders and Contractors Western PA Chapter (ABC, Green Building Council New Jersey Chapter •Delaware Valley Green Building Council. Serands clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Alan Greenhall is a lawyer practicing construction, contracts / agreements, arbitration and 2 other areas of law
  • John received a B.A. degree from Franklin & Marshall College, and has been licensed for 39 years
  • John practices at Cohen Seglias Pallas Greenhall & Furman PC in Philadelphia, PA

Practice Areas Explained

John Alan Greenhall's Areas of Practice

Each practice area below reflects the types of cases John Alan Greenhall handles, with a brief overview of what that area of law covers.

Contracts

John Alan Greenhall is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Pennsylvania →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

John Alan Greenhall is one of 73,906 adr attorneys indexed nationally. Browse adr attorneys in Pennsylvania →

Jurisdictional Context

Why local counsel matters in Pennsylvania

Practicing law in Pennsylvania. Legal matters in Pennsylvania are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Philadelphia are typically filed in the local municipal court or the appropriate Pennsylvania state district court, depending on subject matter and amount in controversy. An attorney licensed in Pennsylvania brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Pennsylvania courts without local counsel or pro hac vice admission.

Looking for additional Pennsylvania attorneys? Browse all attorneys in Philadelphia or all attorneys in Pennsylvania.

Frequently Asked

Common questions about John Alan Greenhall

Where is John Alan Greenhall's law office located?
John Alan Greenhall's law practice is located in Philadelphia, Pennsylvania. The firm is Cohen Seglias Pallas Greenhall & Furman PC. You can contact the office directly through this profile page.
What practice areas does John Alan Greenhall handle?
John Alan Greenhall focuses on contracts, adr. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has John Alan Greenhall practiced law?
John Alan Greenhall has 39+ years of legal experience and has been licensed since 1987.
Where did John Alan Greenhall go to law school?
John Alan Greenhall earned their education at (—); (—).
How can I contact John Alan Greenhall for a consultation?
You can contact John Alan Greenhall directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has John Alan Greenhall received?
John Alan Greenhall's notable recognition includes: AV Preeminent.

Education

George Washington University National Law Center J.D.
- In Progress
Franklin & Marshall College B.A.
- In Progress

Awards

AV Preeminent

Bar Admissions

New Jersey
Admitted: 1987
Pennsylvania
Admitted: 1987
New York
Admitted: 2013

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