Atty. John A Devierno
Mr. John A Devierno is a lawyer practicing legislative practice, administrative law, transportation and 4 other areas of law.
Administrative Law & More Attorney · Serving Washington, DC · 49+ Years Experience
Profile Summary
About John A Devierno at a Glance
John A Devierno is a Member based in Washington, District of Columbia, practicing at John A. DeVierno. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on environmental, government, entertainment, and maritime. Admitted to practice in District of Columbia (1977) and U.S. Court of Appeals for the District of Columbia Circuit and U.S. District Court for the District (1983). Educated at George Washington University (J.D., 1977) and Dartmouth College (B.A., 1973). Recognitions include AV Preeminent. Active member of District of Columbia Bar Federal and American Bar Associations Association of Transportation Law Professionals Maritime Administrative Bar Association. Serves clients in Washington, DC and the surrounding metropolitan area.
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About John A Devierno
- Mr. John A Devierno is a lawyer practicing legislative practice, administrative law, transportation and 4 other areas of law
- John received a B.A. degree from Dartmouth College in 1973, and has been licensed for 49 years
- John practices at John A. DeVierno in Washington, DC
Practice Areas Explained
John A Devierno's Areas of Legal Practice
Each practice area below reflects the types of cases John A Devierno handles, with a practical overview of what that area of law involves and how it may apply to your situation in Washington.
Environmental Law in Washington
Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.
John A Devierno is one of 55,977 environmental attorneys indexed nationally. Browse environmental attorneys in District of Columbia →
Government & Administrative Law in Washington
Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.
John A Devierno is one of 131,162 government attorneys indexed nationally. Browse government attorneys in District of Columbia →
Entertainment & Sports Law in Washington
Entertainment lawyers for music, film, sports contracts, talent representation, and IP licensing.
John A Devierno is one of 45,619 entertainment attorneys indexed nationally. Browse entertainment attorneys in District of Columbia →
Maritime & Admiralty Law in Washington
Maritime attorneys for Jones Act claims, longshore injury, cruise ship cases, and offshore matters.
John A Devierno is one of 11,459 maritime attorneys indexed nationally. Browse maritime 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 John A Devierno
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 John A Devierno's practice in the field of environmental, government, entertainment, and maritime.
Decade-Tested Legal Experience
John A Devierno 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 District of Columbia and U.S. Court of Appeals for the District of Columbia Circuit and U.S. District Court for the District , John A Devierno can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering environmental, government, and entertainment, John A Devierno 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 John A Devierno attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Search Reference
How People Find John A Devierno Online
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John A Devierno's Practice Areas & Specializations
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