Atty. John J. Concannon III

Atty. John J. Concannon III

John J. Concannon III is a lawyer practicing mergers & acquisitions, venture capital, corporate & incorporation and 1 other area of law.

Boston Boston 35 yrs experience 35 year
Call (857) 347-5832 Book Appointment

Profile Summary

About John J. Concannon III at a glance

John J. Concannon III is a Partner based in Boston, Massachusetts, practicing at Morgan, Lewis & Bockius LLP. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on formation, business, and m&a. Admitted to practice in Massachusetts Massachusetts Supreme Judicial Court U.S. District Court, District of Massachusetts (1991). Educated at Boston College (Bachelor, 1987). Recognitions include Peer Reviewed. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J. Concannon III is a lawyer practicing mergers & acquisitions, venture capital, corporate & incorporation and 1 other area of law
  • John received a degree from Boston College in 1987, and has been licensed for 35 years
  • John practices at Morgan, Lewis & Bockius LLP in Boston, MA

Practice Areas Explained

John J. Concannon III's Areas of Practice

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

Business Formation

John J. Concannon III is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Massachusetts →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John J. Concannon III is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Massachusetts →

Mergers & Acquisitions

John J. Concannon III is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in Massachusetts →

Jurisdictional Context

Why local counsel matters in Massachusetts

Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Boston are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts 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 Massachusetts courts without local counsel or pro hac vice admission.

Looking for additional Massachusetts attorneys? Browse all attorneys in Boston or all attorneys in Massachusetts.

Frequently Asked

Common questions about John J. Concannon III

Where is John J. Concannon III's law office located?
John J. Concannon III's law practice is located in Boston, Massachusetts. The firm is Morgan, Lewis & Bockius LLP. You can contact the office directly through this profile page.
What practice areas does John J. Concannon III handle?
John J. Concannon III focuses on formation, business, m&a. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has John J. Concannon III practiced law?
John J. Concannon III has 35+ years of legal experience and has been licensed since 1991.
Where did John J. Concannon III go to law school?
John J. Concannon III earned their education at (Bachelor, 1987).
How can I contact John J. Concannon III for a consultation?
You can contact John J. Concannon III 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 J. Concannon III received?
John J. Concannon III's notable recognition includes: Peer Reviewed.

Education

Bachelor
Boston College
- 1987

Awards

Peer Reviewed

Bar Admissions

Massachusetts Massachusetts Supreme Judicial Court U.S. District Court, District of Massachusetts
Admitted: 1991

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