John J O'Brien

Attorney in Washington, DC with 40 years of experience

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Practice Areas

  • Contract
  • Government

License

State Year
District of Columbia 1987

Education

  • Marshall Wythe School of Law, College of William and Mary, JD, 1985
  • University of Virginia, BS, 1981

Contact John J O'Brien

Cohen Mohr LLP

1055 Thomas Jefferson Street NorthWest

Suite 504

Washington, DC 20007

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