Atty. James M. Costello

Atty. James M. Costello

James M. Costello is a lawyer practicing commercial litigation.

Londonderry Londonderry 37 yrs experience 37 year
Call (603) 619-2184 Book Appointment

Profile Summary

About James M. Costello at a glance

James M. Costello is a business and litigation attorney based in Londonderry, New Hampshire. They have 37+ years of legal experience, licensed to practice since 1989. Admitted to practice in New Hampshire (1989) and Massachusetts (1990). Educated at University of Notre Dame (J.D., 1989) and Merrimack College (B.A., 1986). Serands clients in Londonderry, NH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • James M. Costello is a lawyer practicing commercial litigation
  • James received a B.A. degree from Merrimack College in 1986, and has been licensed for 37 years
  • James practices in Londonderry, NH

Practice Areas Explained

James M. Costello's Areas of Practice

Each practice area below reflects the types of cases James M. Costello handles, with a brief overview of what that area of law covers.

Business & Corporate Law

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

James M. Costello is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New Hampshire →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

James M. Costello is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New Hampshire →

Jurisdictional Context

Why local counsel matters in New Hampshire

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

Looking for additional New Hampshire attorneys? Browse all attorneys in Londonderry or all attorneys in New Hampshire.

Frequently Asked

Common questions about James M. Costello

Where is James M. Costello's law office located?
James M. Costello's law practice is located in Londonderry, New Hampshire. You can contact the office directly through this profile page.
What practice areas does James M. Costello handle?
James M. Costello focuses on business, litigation. Each practice area listed reflects experience handling cases of that type in New Hampshire.
How long has James M. Costello practiced law?
James M. Costello has 37+ years of legal experience and has been licensed since 1989.
Where did James M. Costello go to law school?
James M. Costello earned their education at (J.D., 1989); (B.A., 1986).
How can I contact James M. Costello for a consultation?
You can contact James M. Costello 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.

Practice Areas

Education

J.D.
University of Notre Dame
- 1989
B.A.
Merrimack College
- 1986

Bar Admissions

New Hampshire
Admitted: 1989
Massachusetts
Admitted: 1990

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