Atty. Daniel R. Duff
Daniel R. Duff is a lawyer practicing governmental law, transportation law, nonprofit corporations.
Governmental Law & More Attorney · Serving Washington, DC · 55+ Years Experience
Profile Summary
About Daniel R. Duff at a Glance
Daniel R. Duff is an Of Counsel based in Washington, District of Columbia, practicing at Thompson Coburn LLP. They have 55+ years of legal experience, licensed to practice since 1971. Their practice focuses on business. Admitted to practice in Pennsylvania (1971) and District of Columbia (1995). Educated at University of Pittsburgh School of Law (J.D., 1968) and Georgetown University (B.A. English, 1965). Active member of The District of Columbia Bar. Serves clients in Washington, DC and the surrounding metropolitan area.
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About Daniel R. Duff
- Daniel R. Duff is a lawyer practicing governmental law, transportation law, nonprofit corporations
- Daniel R. received a B.A. degree from Georgetown University in 1965, and has been licensed for 55 years
- Daniel R. practices at Thompson Coburn LLP in Washington, DC
Practice Areas Explained
Daniel R. Duff's Areas of Legal Practice
Each practice area below reflects the types of cases Daniel R. Duff 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.
Daniel R. Duff is one of 497,491 business attorneys indexed nationally. Browse business 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.
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Professional Profile
Why Clients in Washington Choose Daniel R. Duff
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 Daniel R. Duff's practice in the field of business.
Decade-Tested Legal Experience
Daniel R. Duff brings 55+ 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 Pennsylvania and District of Columbia, Daniel R. Duff can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Focused Business Practice
Concentrating on business means Daniel R. Duff's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in Washington
A Washington-based practice means Daniel R. Duff 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 Daniel R. Duff Handles in Washington
Below is a representative sample of the types of matters Daniel R. Duff 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 Daniel R. Duff directly to discuss the specifics of your situation.
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How People Find Daniel R. Duff Online
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Daniel R. Duff's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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