Mario Fiandeiro focuses on regulatory litigation and other litigation against government entities. He also counsels clients on statutory and regulatory matters.
Prior to joining Jones Day, Mario served as a law clerk for Judge Jerry E. Smith of the U.S. Court of Appeals for the Fifth Circuit.
- Harvard University (J.D. cum laude 2023; Editor-in-Chief, Harvard Journal of Law & Public Policy); Northeastern University (B.S. in Economics and Mathematics summa cum laude 2020)
- District of Columbia and U.S. Court of Appeals for the Fifth Circuit
- Law Clerk to Judge Jerry E. Smith, U.S. Court of Appeals, Fifth Circuit (2023-2024)
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