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Guilherme Henrique Guimarães Oliveira profile image

Guilherme Henrique Guimarães Oliveira

Managing Partner at AON Advogados
Intro Book
Seasoned tax law expert with extensive experience in corporate tax, indirect taxation, litigation, and corporate governance.
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Location
São Luís, Maranhão, Brazil, BR
Languages
  • English Native or bilingual proficiency
  • French Limited working proficiency
  • Spanish Professional working proficiency
Skills
  • Tax Law
  • Corporate Tax
  • Sales Tax
  • Income Tax
  • Tax Advisory
  • Show all
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Bio

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Guilherme Henrique Guimarães Oliveira is a seasoned tax law expert with extensive experience in corporate tax, indirect taxation, litigation, and corporate governance. He has held various leadership positions, including Managing Partner at AON Advogados and President of Tax Law Committee at Maranhão Section of the Brazilian Bar Association. With a strong educational background in law and continuing education in tax law and accounting, Guilherme has developed a deep understanding of the Brazilian tax system and its complexities. He is fluent in English, French, and Spanish, and has a professional working proficiency in French. As a respected tax law expert, Guilherme has represented clients in various industries, including real estate, poultry, and corporate sectors. He is currently based in São Luís, Maranhão, Brazil.

Experience

  • AON Advogados
    • São Luís, Maranhão, Brasil
    • Managing Partner
      • Jul 2022 - Present
      • São Luís, Maranhão, Brasil

  • Ordem dos Advogados do Brasil, Seccional Maranhão
    • Maranhão, Brasil
    • President of Tax Law Committee
      • Feb 2019 - Present
      • Maranhão, Brasil

      President of Tax Law Committee at Maranhão Section of the Brazilian Bar Association

  • Maranhão Real-estate Developers Association (ADEMI-MA)
    • São Luís e Região, Brasil
    • Legal Counsellor
      • Feb 2016 - Present
      • São Luís e Região, Brasil

      Representing real state developers in State of Maranhão, Brazil, concerning all legal matters related to the industry.

  • Maranhão Poultry Association (AVIMA)
    • Maranhão, Brasil
    • Legal Counsellor
      • Feb 2016 - Dec 2022
      • Maranhão, Brasil

      Representing legal matters of producers, processing companies, distributors and exporters of the poultry production chain in Maranhão.

  • OLB Advogados
    • São Luís Area, Brazil
    • Partner
      • Jan 2016 - Dec 2021
      • São Luís Area, Brazil

      Partner at Oliveira e Belém Advogados.Head of tax and corporate teams.

  • Ordem dos Advogados do Brasil, Seccional Maranhão
    • São Luís Area, Brazil
    • President of Corporate Law Committee
      • Jan 2018 - Dec 2018
      • São Luís Area, Brazil

      President of Corporate Law Committee at Maranhão Section of the Brazilian Bar Association

  • Estácio
    • São Luís Area, Brazil
    • Professor
      • Mar 2016 - Nov 2016
      • São Luís Area, Brazil

      Professor of tax law for post graduate students.

  • BM&A – Barbosa, Müssnich & Aragão
    • São Paulo Area, Brazil
    • Associate Lawyer
      • Jun 2014 - Dec 2014
      • São Paulo Area, Brazil

  • Advocacia Lunardelli
    • Associate lawyer
      • Mar 2013 - May 2014

  • FGV
    • Brazil
    • Higher Education
    • 700 & Above Employee
    • Assistant Professor
      • Jan 2013 - Dec 2013

      Assistant professor for postgraduate students in the discipline "service and income taxation".

    • Monitor for MBA course - Comercial Taxation
      • Aug 2012 - Dec 2012

    • Monitor for MBA course - Service Taxation
      • Mar 2012 - Jul 2012

  • Trevisioli advogados
    • São Paulo Area, Brazil
    • Tax coordinator
      • Oct 2011 - Feb 2013
      • São Paulo Area, Brazil

  • FGV
    • São Paulo Area, Brazil
    • Monitor for MBA course - Comercial Taxation
      • Aug 2011 - Dec 2011
      • São Paulo Area, Brazil

  • WFARIA ADVOCACIA
    • intern
      • 2008 - 2009

Education

  • 2010 - 2010
    Instituto Brasileiro de Estudos Tributários - IBET
    Continuing education, General Theory of Law
  • 2014 - 2014
    Instituto Brasileiro de Estudos Tributários - IBET
    Continuing education in ICMS., Tax Law/Taxation
  • 2014 - 2014
    Profins - Business School
    Continuing education, Finance, Accounting and Finance
  • 2011 - 2013
    Pontifícia Universidade Católica de São Paulo - COGEAE
    Specialist, Civil Procedural Law
  • 2012 - 2012
    Fundação Instituto de Pesquisas Contábeis, Atuariais e Financeiras - FIPECAFI
    Continuing education, Introduction to Accountancy
  • 2010 - 2012
    Instituto Brasileiro de Estudos Tributários
    Specialist, Tax law
  • 2005 - 2009
    Pontifícia Universidade Católica de São Paulo
    Undergraduate and law school, Law

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