Atty. Stephen Thomas Gannon

Atty. Stephen Thomas Gannon

Mr. Stephen Thomas Gannon is a lawyer practicing securities litigation, regulatory counseling, commercial litigation.

Washington Washington 48 yrs experience 48 year
Call (771) 232-9365 Book Appointment

Profile Summary

About Stephen Thomas Gannon at a glance

Stephen Thomas Gannon is a Shareholder based in Washington, District of Columbia, practicing at McGonigle, P.C.. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on business and litigation. Admitted to practice in Virginia (1978), Massachusetts (1978), and District of Columbia (1984). Educated at Georgetown University Law Center (J.D., 1977) and Georgetown University (B.A., 1974). Recognitions include AV Preeminent. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Stephen Thomas Gannon is a lawyer practicing securities litigation, regulatory counseling, commercial litigation
  • Stephen received a B.A. degree from Georgetown University in 1974, and has been licensed for 48 years
  • Stephen practices at McGonigle, P.C. in Washington, DC

Practice Areas Explained

Stephen Thomas Gannon's Areas of Practice

Each practice area below reflects the types of cases Stephen Thomas Gannon handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Stephen Thomas Gannon is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Civil Litigation

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

Stephen Thomas Gannon is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

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

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about Stephen Thomas Gannon

Where is Stephen Thomas Gannon's law office located?
Stephen Thomas Gannon's law practice is located in Washington, District of Columbia. The firm is McGonigle, P.C.. You can contact the office directly through this profile page.
What practice areas does Stephen Thomas Gannon handle?
Stephen Thomas Gannon focuses on business, litigation. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Stephen Thomas Gannon practiced law?
Stephen Thomas Gannon has 48+ years of legal experience and has been licensed since 1978.
Where did Stephen Thomas Gannon go to law school?
Stephen Thomas Gannon earned their education at (J.D., 1977); (B.A., 1974).
How can I contact Stephen Thomas Gannon for a consultation?
You can contact Stephen Thomas Gannon 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 Stephen Thomas Gannon received?
Stephen Thomas Gannon's notable recognition includes: AV Preeminent.

Education

J.D.
Georgetown University Law Center
- 1977
B.A.
Georgetown University
- 1974

Awards

AV Preeminent

Bar Admissions

Virginia
Admitted: 1978
Massachusetts
Admitted: 1978
District of Columbia
Admitted: 1984

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