Tiago Duarte
Partner

Tiago Duarte

Joined PLMJ in 2004.
Partner in the Public Law practice.

About Tiago

Tiago is a partner in the Public Law practice and has more than 25 years’ experience in public law and arbitration. He is recognised as a lawyer, arbitrator and academic.

As a lawyer, Tiago specialises in administrative law. He is known for his work on major public-private partnership projects, in the public procurement stage, in implementing the contracts, and in administrative litigation and arbitration (domestic and international). He also has extensive experience in all phases of administrative procedure. Tiago has assisted private companies and public bodies in a range of matters, including their relationship with the Court of Auditors and the Constitutional Court.

As an arbitrator, he has extensive experience in domestic and international disputes, including as a sole arbitrator in an ICC arbitration. Tiago is also one of the four Portuguese arbitrators nominated by the Portuguese State to the International Centre for Settlement of Investment Disputes’ (ICSID) international panel of arbitrators. The ICSID is the most important investment arbitration centre in the world. Prior to this, Tiago, had already worked as a lawyer and legal expert in various ICSID arbitrations.

As an academic, Tiago has a doctorate in public law from Universidade Nova de Lisboa. He is also a professor at the Faculty of Law of Universidade Católica Portuguesa, where he is responsible for the subjects of constitutional law, administrative contracts, and international investment arbitration. Tiago is also a guest lecturer at other universities and a speaker on a variety of postgraduate courses.

He has carried out research and published writings in the areas of constitutional law, administrative law, public finances and international investment protection arbitration. Tiago was a Visiting Fellow at the University of Cambridge (Lauterpacht Research Centre for International Law and Wolfson College).

Contacts

Languages:
English, Spanish, French, Italian

Academic Background
  • Law degree from the University of Lisbon, 1995.
  • Admitted to the Portuguese Bar Association, 1997
  • Doctorate and master’s programme, Faculty of Law of Universidade Nova de Lisboa, 1997-1999
  • Doctorate in public law from the Faculty of Law of Universidade Nova de Lisboa, 2005
  • Lecturer at the Faculty of Law of the University of Lisbon (economic law and tax law), 1994-1999
  • Professor (regent) of financial law (public finances), Faculty of Law of Universidade Nova de Lisboa, 2004-2007
  • Professor and head of administrative law and constitutional law, Faculty of Law of Universidade Nova de Lisboa, 2006-2018
  • Professor on the Master’s in Law and Management, Nova School Business Economics, 2010-2018
  • Visiting Fellow at the University of Cambridge (Lauterpacht Research Centre for International, 2011-2012
  • Professor and head of public contracts law, Faculty of Law of Universidade Nova de Lisboa, 2012-2018
  • Professor of public law arbitration, and investment protection arbitration on the FDUNL postgraduate programme in arbitration, (2012-2018)
  • Professor of investment protection arbitration on the LL.M European and Transglobal Business Law, University of the Minho since 2013
  • Professor at the Faculty of Law of Universidade Católica Portuguesa since 2018
Professional Background
  • Partner at PLMJ since 2008
  • Legal adviser to the Secretary of State for the Presidency of the Council of Ministers, 1995-1997
  • Legal assistant to the Secretary of State of the Portuguese Communities - Ministry of Foreign Affairs, 1997-1999
  • Consultant at the Office of Legislative Policy and Planning of the Ministry of Justice, 2001-2004
  • Legal assistant and head of the cabinet of the Deputy Secretary of State of the Minister of Economy, 2002- 2003
  • Arbitrator in various arbitrations since 2009
  • Member of the panel of arbitrators at the Commercial Arbitration Centre (CCIP) and at the Administrative Arbitration Centre (CAAD) since 2012
  • President of Investment Arbitration Board of the Portuguese Arbitration Association (APA) since 2013
  • President of the Monitoring Committee of the New Urban Lease Law, 2013
  • Legal expert in international arbitration at the ICSID
  • Permanent member of the National Ethics Council for Life Sciences
Member of
  • Member of the National Council of Ethics for the Life Sciences (Conselho Nacional de Ética para as Ciências da Vida), elected by the Portuguese Parliament
The Legal 500
2022 - Tiago Duarte | Public Law
2021 - Tiago Duarte | Public Law
2020 - Tiago Duarte | Public Law
2019 - Tiago Duarte | Public Law
2018 - Tiago Duarte | Public Law
2017 - Tiago Duarte | Public Law
Who's Who Legal
2021 - Tiago Duarte, Iberia National Leader | Government Contracts
2020 - Tiago Duarte, Global Leader | Government Contracts
2019 - Tiago Duarte, Global Leader | Government Contracts
Chambers Europe
2022 - Tiago Duarte, Band 2 | Public & Administrative Law
2021 - Tiago Duarte, Band 2 | Public & Administrative Law
2020 - Tiago Duarte, Band 2 | Public & Administrative Law

"Clients depict his work as "practical and solid"."

2019 - Tiago Duarte, Band 2 | Public & Administrative Law

"He advises a broad array of clients, including concessionaires, public organisations and industry associations."

2018 - Tiago Duarte, Band 2 | Public & Administrative Law

"He is recognised for his exceptional technical knowledge, availability and good ability to find alternative solutions."

2017 - Tiago Duarte, Band 2 | Public & Administrative Law

"Tiago Duarte continues to be a well-reputed figure in the Portuguese public law arena for his professional and academic background."

Best Lawyers
2023 - Tiago Duarte | Recommended Lawyers
2023 - Tiago Duarte | Public Law
2022 - Tiago Duarte | Recommended Lawyers
2021 - Tiago Duarte | Recommended Lawyers
2019 - Tiago Duarte | Recommended Lawyers
2018 - Tiago Duarte | Recommended Lawyers
2017 - Tiago Duarte | Recommended Lawyers
2016 - Tiago Duarte | Other Recommended Lawyer
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