Atty. John J. Sullivan

Atty. John J. Sullivan

John J. Sullivan is a lawyer practicing litigation, commercial law, insurance law and 1 other area of law.

Washington Washington 43 yrs experience 43 year
Call (202) 738-1866 Book Appointment

Profile Summary

About John J. Sullivan at a glance

John J. Sullivan is a business, litigation, government, and insurance attorney based in Washington, District of Columbia. They have 43+ years of legal experience, licensed to practice since 1983. Admitted to practice in District of Columbia (1983) and U.S. Court of Appeals, District of Columbia Circuit and U.S. District Court, District of Columbia (1985). Educated at George Washington University (J.D., 1979) and Brooklyn College of the City University of New York (B.A., 1976). Active member of The District of Columbia Bar (Member, Section of Litigation) Federal Energy and American Bar Associations. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John J. Sullivan is a lawyer practicing litigation, commercial law, insurance law and 1 other area of law
  • John J. received a B.A. degree from Brooklyn College of the City University of New York in 1976, and has been licensed for 43 years
  • John J. practices in Washington, DC

Practice Areas Explained

John J. Sullivan's Areas of Practice

Each practice area below reflects the types of cases John J. Sullivan 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.

John J. Sullivan 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.

John J. Sullivan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Government & Administrative Law

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

John J. Sullivan is one of 132,225 government attorneys indexed nationally. Browse government attorneys in District of Columbia →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

John J. Sullivan is one of 121,912 insurance attorneys indexed nationally. Browse insurance 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 John J. Sullivan

Where is John J. Sullivan's law office located?
John J. Sullivan's law practice is located in Washington, District of Columbia. You can contact the office directly through this profile page.
What practice areas does John J. Sullivan handle?
John J. Sullivan focuses on business, litigation, government, insurance. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has John J. Sullivan practiced law?
John J. Sullivan has 43+ years of legal experience and has been licensed since 1983.
Where did John J. Sullivan go to law school?
John J. Sullivan earned their education at (J.D., 1979); (B.A., 1976).
How can I contact John J. Sullivan for a consultation?
You can contact John J. 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.

Education

J.D.
George Washington University
- 1979
B.A.
Brooklyn College of the City University of New York
- 1976

Bar Admissions

District of Columbia
Admitted: 1983
U.S. Court of Appeals, District of Columbia Circuit and U.S. District Court, District of Columbia
Admitted: 1985

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