Atty. David Xavier Sullivan

Atty. David Xavier Sullivan

David Xavier Sullivan is a lawyer practicing criminal taxation, civil litigation, criminal law and 1 other area of law. David received a B.A. degree from Catholic University of America in 1982, and has been licensed for 38 years.

Hartford Hartford 38 yrs experience 38 year
Call (860) 313-4946 Book Appointment

Profile Summary

About David Xavier Sullivan at a glance

David Xavier Sullivan is an U.S. Atty. Off. based in Hartford, Connecticut, practicing at McCarter & English, LLP. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on criminal defense, tax, and litigation. Admitted to practice in Connecticut (1988) and U.S. District Court, District of Connecticut (1989). Educated at Columbus School of Law (J.D. Quinnipiac, 1988) and Catholic University of America (B.A., 1982). Recognitions include CV Notable. Serands clients in Hartford, CT and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David Xavier Sullivan is a lawyer practicing criminal taxation, civil litigation, criminal law and 1 other area of law
  • David received a B.A. degree from Catholic University of America in 1982, and has been licensed for 38 years
  • David practices at McCarter & English, LLP in Hartford, CT

Practice Areas Explained

David Xavier Sullivan's Areas of Practice

Each practice area below reflects the types of cases David Xavier Sullivan 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.

David Xavier Sullivan is one of 214,271 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Connecticut →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

David Xavier Sullivan is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Connecticut →

Civil Litigation

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

David Xavier Sullivan is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 David Xavier Sullivan

Where is David Xavier Sullivan's law office located?
David Xavier Sullivan's law practice is located in Hartford, Connecticut. The firm is McCarter & English, LLP. You can contact the office directly through this profile page.
What practice areas does David Xavier Sullivan handle?
David Xavier Sullivan focuses on criminal defense, tax, litigation. Each practice area listed reflects experience handling cases of that type in Connecticut.
How long has David Xavier Sullivan practiced law?
David Xavier Sullivan has 38+ years of legal experience and has been licensed since 1988.
Where did David Xavier Sullivan go to law school?
David Xavier Sullivan earned their education at (J.D. Quinnipiac, 1988); (B.A., 1982).
How can I contact David Xavier Sullivan for a consultation?
You can contact David Xavier Sullivan 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 David Xavier Sullivan received?
David Xavier Sullivan's notable recognition includes: CV Notable.

Education

J.D. Quinnipiac
Columbus School of Law
- 1988
B.A.
Catholic University of America
- 1982

Awards

CV Notable

Bar Admissions

Connecticut
Admitted: 1988
U.S. District Court, District of Connecticut
Admitted: 1989

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