Atty. John J. Costanzo

Atty. John J. Costanzo

John J. Costanzo practices at John Costanzo Read Full Bio

Bolton Bolton 16 yrs experience 16 year
Call (857) 575-2682 Email Book Appointment

Profile Summary

About John J. Costanzo at a glance

John J. Costanzo is an Attorney based in Bolton, Massachusetts, practicing at John Costanzo. They have 16+ years of legal experience, licensed to practice since 2010. Their practice focuses on wills, trusts, probate, estate planning, and poa. Admitted to practice in Massachusetts (2010) and New Hampshire (2010). Educated at Suffolk University Law School J.D. (—) and Slippery Rock University B.S. Slippery Rock University M.A. Counseling Gerontology (—). Serands clients in Bolton, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

John J. Costanzo practices at John Costanzo Read Full Bio

Practice Areas Explained

John J. Costanzo's Areas of Practice

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

Wills

John J. Costanzo is one of 34,541 wills attorneys indexed nationally. Browse wills attorneys in Massachusetts →

Trusts

John J. Costanzo is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in Massachusetts →

Probate

John J. Costanzo is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Massachusetts →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

John J. Costanzo is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in Massachusetts →

Power of Attorney

John J. Costanzo is one of 33,188 poa attorneys indexed nationally. Browse poa 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 Bolton 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 Bolton or all attorneys in Massachusetts.

Frequently Asked

Common questions about John J. Costanzo

Where is John J. Costanzo's law office located?
John J. Costanzo's law practice is located in Bolton, Massachusetts. The firm is John Costanzo. You can contact the office directly through this profile page.
What practice areas does John J. Costanzo handle?
John J. Costanzo focuses on wills, trusts, probate, estate planning, poa. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has John J. Costanzo practiced law?
John J. Costanzo has 16+ years of legal experience and has been licensed since 2010.
Where did John J. Costanzo go to law school?
John J. Costanzo earned their education at (—); (—).
How can I contact John J. Costanzo for a consultation?
You can contact John J. Costanzo 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.

Education

Suffolk University Law School J.D.
- In Progress
Slippery Rock University B.S. Slippery Rock University M.A. Counseling Gerontology
- In Progress

Bar Admissions

Massachusetts
Admitted: 2010
New Hampshire
Admitted: 2010

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