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John Sullivan joins Mayer Brown

  • Garrison Search
  • Jan 5, 2023
  • 1 min read

John Sullivan, former U.S. Ambassador to the Russian Federation, has joined Mayer Brown as Partner and co-lead of the firm’s National Security Practice. Ambassador Sullivan will advise clients on issues important to their business operations, including global risk, U.S. sanctions and export controls, international trade disputes and regulation, and foreign investment.

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