Atty. Mark Douglas Colley

Atty. Mark Douglas Colley

Mr. Mark Douglas Colley is a lawyer practicing government contracts, litigation, business litigation and 2 other areas of law.

Washington Washington 46 yrs experience 46 year
Call (771) 224-8454 Book Appointment

Profile Summary

About Mark Douglas Colley at a glance

Mark Douglas Colley is a Partner based in Washington, District of Columbia, practicing at Arnold And Porter Llp. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on business, securities, litigation, consumer, and government. Admitted to practice in Virginia (1980), District of Columbia (1981), U.S. District Court, District of Columbia and U.S. Courts of Appeals, Fourth and District of Columbi (1981), and U.S. District Court, Eastern District of Virginia and U.S. Court of Appeals, Federal Circuit (1988). Educated at University of Virginia (J.D., 1980) and College of William & Mary (B.A., 1977). Recognitions include AV Preeminent. Active member of Chair-Elect, ABA Section of Public Contract Law Member, Federal Circuit, Federal and Boards of Contract Appeals Bar Associations. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Mark Douglas Colley is a lawyer practicing government contracts, litigation, business litigation and 2 other areas of law
  • Mark received a B.A. degree from College of William & Mary in 1977, and has been licensed for 46 years
  • Mark practices at Arnold & Porter LLP in Washington, DC

Practice Areas Explained

Mark Douglas Colley's Areas of Practice

Each practice area below reflects the types of cases Mark Douglas Colley 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.

Mark Douglas Colley is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Securities Law

Mark Douglas Colley is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in District of Columbia →

Civil Litigation

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

Mark Douglas Colley is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Mark Douglas Colley is one of 50,607 consumer attorneys indexed nationally. Browse consumer attorneys in District of Columbia →

Government & Administrative Law

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

Mark Douglas Colley is one of 132,225 government attorneys indexed nationally. Browse government 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 Mark Douglas Colley

Where is Mark Douglas Colley's law office located?
Mark Douglas Colley's law practice is located in Washington, District of Columbia. The firm is Arnold And Porter Llp. You can contact the office directly through this profile page.
What practice areas does Mark Douglas Colley handle?
Mark Douglas Colley focuses on business, securities, litigation, consumer, government. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Mark Douglas Colley practiced law?
Mark Douglas Colley has 46+ years of legal experience and has been licensed since 1980.
Where did Mark Douglas Colley go to law school?
Mark Douglas Colley earned their education at (J.D., 1980); (B.A., 1977).
How can I contact Mark Douglas Colley for a consultation?
You can contact Mark Douglas Colley 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 Mark Douglas Colley received?
Mark Douglas Colley's notable recognition includes: AV Preeminent.

Education

J.D.
University of Virginia
- 1980
B.A.
College of William & Mary
- 1977

Awards

AV Preeminent

Bar Admissions

Virginia
Admitted: 1980
District of Columbia
Admitted: 1981
U.S. District Court, District of Columbia and U.S. Courts of Appeals, Fourth and District of Columbi
Admitted: 1981
U.S. District Court, Eastern District of Virginia and U.S. Court of Appeals, Federal Circuit
Admitted: 1988
U.S. Court of Appeals, Eleventh Circuit
Admitted: 1989
U.S. Court of Appeals, Tenth Circuit and U.S. Court of Federal Claims
Admitted: 1991
U.S. District Court, District of Colorado
Admitted: 1999

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