Profile Summary
About Mark A. Sullivan at a glance
Mark A. Sullivan is a environmental, government, energy, and international attorney based in Washington, District of Columbia. They have 30+ years of legal experience, licensed to practice since 1996. Admitted to practice in New York (1996) and District of Columbia (1998). Educated at Yale Law School (JD, 1976). Serves clients in Washington, DC and the surrounding metropolitan area.
Want to Get Service From This Attorney?
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About
- Mr. Mark A. Sullivan is a lawyer practicing energy & utilities, climate change, project finance and 2 other areas of law
- Mark has been licensed for 30 years
- Mark practices in Washington, DC
Practice Areas Explained
Mark A. Sullivan's Areas of Practice
Each practice area below reflects the types of cases Mark A. Sullivan handles, with a brief overview of what that area of law covers.
Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.
Mark A. Sullivan is one of 50,776 environmental attorneys indexed nationally. Browse environmental attorneys in District of Columbia →
Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.
Mark A. Sullivan is one of 118,414 government attorneys indexed nationally. Browse government attorneys in District of Columbia →
Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.
Mark A. Sullivan is one of 32,699 energy attorneys indexed nationally. Browse energy attorneys in District of Columbia →
International law attorneys for cross-border transactions, trade, foreign investment, and treaties.
Mark A. Sullivan is one of 36,155 international attorneys indexed nationally. Browse international 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 venue, 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 A. Sullivan
Where is Mark A. Sullivan's law office located?
What practice areas does Mark A. Sullivan handle?
How long has Mark A. Sullivan practiced law?
Where did Mark A. Sullivan go to law school?
How can I contact Mark A. Sullivan for a consultation?
Practice Areas
Education
Bar Admissions
Reviews
No reviews yet.