Author of several articles for newspapers and law books. Former Assistant Professor, Tax Law, Pontífice Universidade Católica. Partner at WFaria Advocacia, coordinating the Tax Litigation, Social Security and Labor Departments. Administrative Judge at the Tax Court of the Municipality of São Bernardo do Campo in São Paulo. Former Senior Attorney, Levy & Salomão Advogados, coordinating teams doing tax and civil litigation for large financial institutions such as Citigroup, Deutsche Bank, ABN AMRO, JP Morgan, Sumitomo Bank, Unibanco, Banco Itaú, Bradesco.