Atty. David Thayne Leibell

Atty. David Thayne Leibell

David Thayne Leibell is a lawyer practicing trusts and estates, charitable planning, estate planning and 1 other area of law. David received a B.A. degree from Trinity College in 1983, and has been licensed for 36 years.

New Haven New Haven 36 yrs experience 36 year
Call (203) 902-0063 Book Appointment

Profile Summary

About David Thayne Leibell at a glance

David Thayne Leibell is a Partner based in New Haven, Connecticut, practicing at Wiggin and Dana LLP. They have 36+ years of legal experience, licensed to practice since 1990. Their practice focuses on trusts, estate planning, and tax. Admitted to practice in Connecticut (1990) and New York (2007). Educated at Fordham University School of Law (J.D. New, 1989) and Trinity College (B.A., 1983). Serands clients in New Haven, CT and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • David Thayne Leibell is a lawyer practicing trusts and estates, charitable planning, estate planning and 1 other area of law
  • David received a B.A. degree from Trinity College in 1983, and has been licensed for 36 years
  • David practices at Wiggin and Dana LLP in New Haven, CT and 4 others locations

Practice Areas Explained

David Thayne Leibell's Areas of Practice

Each practice area below reflects the types of cases David Thayne Leibell handles, with a brief overview of what that area of law covers.

Trusts

David Thayne Leibell is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in Connecticut →

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.

David Thayne Leibell is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in Connecticut →

Tax Law

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

David Thayne Leibell is one of 85,302 tax attorneys indexed nationally. Browse tax 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 New Haven 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 New Haven or all attorneys in Connecticut.

Frequently Asked

Common questions about David Thayne Leibell

Where is David Thayne Leibell's law office located?
David Thayne Leibell's law practice is located in New Haven, Connecticut. The firm is Wiggin and Dana LLP. You can contact the office directly through this profile page.
What practice areas does David Thayne Leibell handle?
David Thayne Leibell focuses on trusts, estate planning, tax. Each practice area listed reflects experience handling cases of that type in Connecticut.
How long has David Thayne Leibell practiced law?
David Thayne Leibell has 36+ years of legal experience and has been licensed since 1990.
Where did David Thayne Leibell go to law school?
David Thayne Leibell earned their education at (J.D. New, 1989); (B.A., 1983).
How can I contact David Thayne Leibell for a consultation?
You can contact David Thayne Leibell 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

J.D. New
Fordham University School of Law
- 1989
B.A.
Trinity College
- 1983

Bar Admissions

Connecticut
Admitted: 1990
New York
Admitted: 2007

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