Atty. Michael Sean Tierney

Atty. Michael Sean Tierney

Michael Sean Tierney is a lawyer practicing public finance. Michael received a B.A. degree from Columbia University in 1985, and has been licensed for 37 years.

New York New York 37 yrs experience 37 year
Call (929) 730-4942 Book Appointment

Profile Summary

About Michael Sean Tierney at a glance

Michael Sean Tierney is a Partner based in New York, New York, practicing at Hawkins Delafield & Wood LLP. They have 37+ years of legal experience, licensed to practice since 1989. Their practice focuses on government. Admitted to practice in New York (1989), California (1991), Hawaii (2006), and Washington (2007). Educated at University of California School of Law, Los Angeles (J.D., 1988) and Columbia University (B.A., 1985). Recognitions include Peer Reviewed. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Michael Sean Tierney is a lawyer practicing public finance
  • Michael received a B.A. degree from Columbia University in 1985, and has been licensed for 37 years
  • Michael practices at Hawkins Delafield & Wood LLP in New York, NY and 2 others locations

Practice Areas Explained

Michael Sean Tierney's Areas of Practice

Each practice area below reflects the types of cases Michael Sean Tierney handles, with a brief overview of what that area of law covers.

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

Michael Sean Tierney is one of 132,225 government attorneys indexed nationally. Browse government attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

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

Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.

Frequently Asked

Common questions about Michael Sean Tierney

Where is Michael Sean Tierney's law office located?
Michael Sean Tierney's law practice is located in New York, New York. The firm is Hawkins Delafield & Wood LLP. You can contact the office directly through this profile page.
What practice areas does Michael Sean Tierney handle?
Michael Sean Tierney focuses on government. Each practice area listed reflects experience handling cases of that type in New York.
How long has Michael Sean Tierney practiced law?
Michael Sean Tierney has 37+ years of legal experience and has been licensed since 1989.
Where did Michael Sean Tierney go to law school?
Michael Sean Tierney earned their education at (J.D., 1988); (B.A., 1985).
How can I contact Michael Sean Tierney for a consultation?
You can contact Michael Sean Tierney 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 Michael Sean Tierney received?
Michael Sean Tierney's notable recognition includes: Peer Reviewed.

Practice Areas

Education

J.D.
University of California School of Law, Los Angeles
- 1988
B.A.
Columbia University
- 1985

Awards

Peer Reviewed

Bar Admissions

New York
Admitted: 1989
California
Admitted: 1991
Hawaii
Admitted: 2006
Washington
Admitted: 2007

Reviews

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