Atty. William Daniel Sullivan
William Daniel Sullivan is a lawyer practicing construction / development, energy / utilities, real estate and 2 other areas of law. William received a A.B. degree from Harvard College in 1970, and has been licensed for 49 years.
Construction / Development & More Attorney · Serving Washington, DC · 49+ Years Experience
Profile Summary
About William Daniel Sullivan at a Glance
William Daniel Sullivan is an Of Counsel based in Washington, District of Columbia, practicing at Butzel Long Tighe Patton, PLLC. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on business, real estate, litigation, and energy. Admitted to practice in Virginia (1977) and District of Columbia U.S. Supreme Court U.S. Court of Appeals for the District of Columbia, Federal, (1978). Educated at American University (J.D., 1977) and Harvard College (A.B., 1970). Recognitions include AV Preeminent. Serves clients in Washington, DC and the surrounding metropolitan area.
Get Legal Help from William Daniel Sullivan in Washington
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 William Daniel Sullivan
- William Daniel Sullivan is a lawyer practicing construction / development, energy / utilities, real estate and 2 other areas of law
- William received a A.B. degree from Harvard College in 1970, and has been licensed for 49 years
- William practices at Butzel Long Tighe Patton, PLLC in Washington, DC
Practice Areas Explained
William Daniel Sullivan's Areas of Legal Practice
Each practice area below reflects the types of cases William Daniel Sullivan handles, with a practical overview of what that area of law involves and how it may apply to your situation in Washington.
Business & Corporate Law in Washington
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
William Daniel Sullivan is one of 497,491 business attorneys indexed nationally. Browse business attorneys in District of Columbia →
Real Estate Law in Washington
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
William Daniel Sullivan is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in District of Columbia →
Civil Litigation in Washington
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
William Daniel Sullivan is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →
Energy & Utilities Law in Washington
Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.
William Daniel Sullivan is one of 35,985 energy attorneys indexed nationally. Browse energy attorneys in District of Columbia →
Jurisdictional Context
Why Local Counsel Matters in Washington
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.
Washington Courts and Legal Process
Choosing a Washington-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.
Frequently Asked
Common Questions About William Daniel Sullivan
Where is William Daniel Sullivan's law office located?
What practice areas does William Daniel Sullivan handle?
How long has William Daniel Sullivan practiced law?
Where did William Daniel Sullivan go to law school?
How can I contact William Daniel Sullivan for a consultation?
What awards or recognition has William Daniel Sullivan received?
Professional Profile
Why Clients in Washington Choose William Daniel Sullivan
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish William Daniel Sullivan's practice in the field of business, real estate, litigation, and energy.
Decade-Tested Legal Experience
William Daniel Sullivan brings 49+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in Virginia and District of Columbia U.S. Supreme Court U.S. Court of Appeals for the District of Columbia, Federal,, William Daniel Sullivan can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, real estate, and litigation, William Daniel Sullivan can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Washington
A Washington-based practice means William Daniel Sullivan attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues William Daniel Sullivan Handles in Washington
Below is a representative sample of the types of matters William Daniel Sullivan has experience with under District of Columbia law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact William Daniel Sullivan directly to discuss the specifics of your situation.
Search Reference
How People Find William Daniel Sullivan Online
Prospective clients searching for legal help in Washington commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like William Daniel Sullivan.
If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with William Daniel Sullivan directly.
William Daniel Sullivan's Practice Areas & Specializations
Education & Law School Background
Awards & Professional Honors
Bar Admissions & Licensed Jurisdictions
Client Reviews & Ratings — William Daniel Sullivan
No reviews yet.