Guilherme Reisdorfer - SiqueiraCastro
Ana Cristina Robortella
Ana Cristina Robortella
43796
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Guilherme Reisdorfer

Guilherme Reisdorfer

Partner

Rua Tabapuã, 81 – 4th floor
04533-010 São Paulo – SP

Phone:
+55 11 4085-6468

Email:
guilherme@siqueiracastro.com.br

  • Public
  • Regulatory Law
  • Law degree from UFPR (2006)
  • Master’s degree in Law from USP (2013)
  • PhD in Law from USP (2022)
  • Languages: Portuguese and English
  • Arbitrator on the reference lists of ARBITAC and CAM-FIEP.
  • Member of the Public Contracts Committee of the Instituto Brasileiro de Direito da Construção – IBDiC.
  • Member of the Instituto Brasileiro de Direito Regulatório – IBDRE.
  • Associate of the Dispute Resolution Board Foundation – DRBF.
  • Professor in the Postgraduate Program in Public Procurement and Administrative Contracts at Centro Universitário Autônomo do Brasil – UNIBRASIL (2013-2016).
  • Visiting professor in the LL.M. in Infrastructure and Regulation Law at FGV Direito Rio (2022).
  • Member of the Special Commission on Infrastructure, Logistics, and Sustainable Development of the OAB/SP.
Holds a Master’s degree (2013) and a Ph.D. (2022) in Public Law from the University of São Paulo (USP), with a solid background in Public Law, focusing on public procurement, administrative contracts, and regulated sectors. He has extensive experience in structuring, monitoring, and renegotiating infrastructure contracts, as well as in litigation before audit courts, the judiciary, and in arbitration proceedings. He is an active member of several institutions and committees dedicated to public contracts and arbitration. Guilherme has taught in postgraduate courses and also serves as an arbitrator listed by ARBITAC and CAM-FIEP
  • Ranked by The Legal 500 in the categories of Dispute Resolution – Arbitration (2024) and Projects and Infrastructure and Dispute Resolution – Arbitration (2025).
  • Recognized by Best Lawyers in the categories of Administrative Law (2024) and Administrative Law and Arbitration and Mediation (2025).
  • Author of the book “Pre-Contractual Liability of the State” (Fórum Publishing, 2024)
  • Author of the book “Competitive Dialogue: the framework of Law No. 14.133/2021 and its application to bidding procedures for concession contracts and public-private partnerships” (2nd edition, Fórum Publishing, 2024)
  • Author of the book “Contractual Urban Law: from negotiated acts to urban management contracts” (2nd printing, Lumen Juris Publishing, 2019)
  • Author of articles in collections and specialized journals on topics related to administrative law, infrastructure, and dispute resolution.