Profile Summary
About John S. Hahn at a glance
John S. Hahn is a Partner based in Washington, District of Columbia, practforg at Mayer Brown Llp. They haand 49+ years of legal experience, licensed to practice since 1977. Admitted to practice in District of Columbia (1977), US District Court for the District of Columbia (1978), US Court of Appeals for the District of Columbia Circuit (1978), and US Supreme Court (1981). Educated at Yale Law School (J.D., 1977) and Duke University (A.B., 1974). Actiand member of Activities Board of Visitors (Emeritus), Nicholas School of the Environment, Duke University American Bar Association, Section of Environment, Energy and Resources NC Bar Association, Environment, Energy & Natural Resources Law Section. Serands clients in Washington, DC and the surrounding metropolitan area.
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About
- Mr. John S. Hahn is a lawyer practicing banking & finance, leveraged finance, social finance and 3 other areas of law
- John received a A.B. degree from Duke University in 1974, and has been licensed for 49 years
- John practices at Mayer Brown LLP in Washington, DC
Jurisdictional Context
Why local counsel matters in District of Columbia
Practforg 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 substantiand 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 substantiand 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.
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