Atty. Matthew James Costello

Atty. Matthew James Costello

Matthew James Costello is a lawyer practicing criminal defense. Matthew has been licensed for 29 years.

Hartford Hartford 29 yrs experience 29 year
Call (860) 970-0131 Book Appointment

Profile Summary

About Matthew James Costello at a glance

Matthew James Costello is a criminal defense attorney based in Hartford, Connecticut. They have 29+ years of legal experience, licensed to practice since 1997. Admitted to practice in Connecticut (1997) and New York (1998). Serands clients in Hartford, CT and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Matthew James Costello is a lawyer practicing criminal defense
  • Matthew has been licensed for 29 years
  • Matthew practices in Hartford, CT

Practice Areas Explained

Matthew James Costello's Areas of Practice

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

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Matthew James Costello is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Connecticut →

Jurisdictional Context

Why local counsel matters in Connecticut

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

Looking for additional Connecticut attorneys? Browse all attorneys in Hartford or all attorneys in Connecticut.

Frequently Asked

Common questions about Matthew James Costello

Where is Matthew James Costello's law office located?
Matthew James Costello's law practice is located in Hartford, Connecticut. You can contact the office directly through this profile page.
What practice areas does Matthew James Costello handle?
Matthew James Costello focuses on criminal defense. Each practice area listed reflects experience handling cases of that type in Connecticut.
How long has Matthew James Costello practiced law?
Matthew James Costello has 29+ years of legal experience and has been licensed since 1997.
How can I contact Matthew James Costello for a consultation?
You can contact Matthew James 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

Bar Admissions

Connecticut
Admitted: 1997
New York
Admitted: 1998

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