Teresa Anselmo Vaz

Of Counsel | Lisbon

Practice Areas
Corporate and M&A
Litigation and Arbitration
Health, Life Sciences & Pharmaceutics
  • English
  • French
  • Spanish

Teresa Anselmo Vaz is Of Counsel at Abreu Advogados since May 2021, and has been working mainly in the Corporate and M&A and Litigation and Arbitration practice areas.

Teresa Anselmo Vaz has a professional background defined by legal advice in areas such as commercial and corporate law, including restructuring and privatization, but also in conflict resolution, including arbitration.

She has recognized experience in various industries, among which the Health, Life Sciences & Pharmaceuticals sector stand out, in which she developed a practice in intellectual property, with experience in litigation, arbitration and judicial, patenting of chemical and pharmaceutical products.

Teresa Anselmo Vaz is recognized in the market for the sustainable solutions she finds in resolving disputes in a pre-litigation phase, in an arbitration and judicial context.

She has published many works in Corporate and M&A and Arbitration matters.

Admitted to the Portuguese Bar Association since 1998.

Global | Dispute Resolution – TIER 2 (2019-2021)

Europe | Dispute Resolution – TIER 2 (2019-2021)

Europe | Intellectual Property – TIER 3 (2019)

Litigation – Recommended (2020, 2020 Global Business Edition and 2021)

International Arbitration – Recommended (2020, 2020 Global Business Edition and 2021)

Corporate Law – Recommended (2020, 2020 Global Business Edition and 2021)

Intellectual Property – Recommended (2020, 2020 Global Business Edition and 2021)

Merges ad Acquisitions Law – Recommended (2020, 2020 Global Business Edition and 2021)

Corporate/M&A – Highly Recommended (2021)

Civil & Commercial Litigation – Highly Recommended (2020)

Commercial, Corporate and M&A – Recommended (2020-2021)

Intellectual Property (2020)

Data – Iberia National Leaders – Recommended (2021)

Life Sciences – Iberia National Leaders – Recommended (2021)

Patents – Iberia National Leaders – Recommended (2021)

Data – Information Technology – Recommended (2020 e 2021)

Life Sciences – Patent Litigation – Recommended (2020 e 2021)


Legal advice to an international private equity firm in the acquisition of a majority stake in a world leading operator in water distribution and efficiency projects (legal advice on the Portuguese side of the transaction).

Advising one of the largest multinational consulting services companies in the acquisition of a SAP solutions development company, based in the United Kingdom, in the part related to its Portuguese subsidiary.

Legal adviser to a Brazilian company of aircrafts manufacturing in the preparation and presentation of a bid for the acquisition of a 65% stake in the share capital of an aeronautical equipment company owned by the Portuguese State.

Legal adviser in the dissolution and liquidation of a group of companies with activities in the telecommunications sector (including its holding and operational company).

Legal advice to an Italian bank on the establishment of a Portuguese branch (and on several aspects of its financing and commercial activities).

Litigation between shareholders, impugnation of shareholders’ resolutions, judicial inquiries, proceedings connected with shareholders’ rights in general and shareholders’ agreements related disputes.

Litigation related with validity and/or infringement of European and national patents.

Representation of a national listed company, as a plaintiff, in international arbitration under the aegis of the Paris ICC.

Representation of a subsidiary of a company established in France, as plaintiff, in a domestic arbitration under the aegis of the Arbitration Centre of the Lisbon Chamber of Commerce and Industry, the place of arbitration being Lisbon, in a dispute for the payment of remuneration arising from the performance of a contract for the provision of services.

Participation as a sole arbitrator, in international arbitration subject to Spanish law, under the aegis of CCI Madrid.



Faculdade de Direito da Universidade de Lisboa

Law Degree (1985)

Faculdade de Direito da Universidade Católica de Lisboa

Postgraduate degree in European Studies (1986)

Faculdade de Direito da Universdidade Católica de Lisboa

Master’s Degree in Law (Course Units) (1994)