Pietro Grassi is an associate based in the London office of Morrison & Foerster and is a member of the Litigation Group.  He specializes in public international law, international dispute resolution, and global investigations. 

Mr. Grassi advises on public international law, international dispute resolution, and global investigations.  At Morrison & Foerster, he has advised a range of organisations on internal corporate investigations and during prosecution by the Department of Justice of the United States (DOJ). In addition to his work with corporate clients, Mr. Grassi is engaged in pro bono litigation involving international human rights issues.

He has represented individuals, country-states and global corporations on matters of public international law and in investment treaty and international commercial arbitrations under major arbitration rules (e.g., ICSID, UNCITRAL, ICC, LCIA, and SCC). Before entering private practice, he worked at the European Union Delegation to the Organization for Security and Co-operation in Europe (OSCE) and at the Special Tribunal for Lebanon (STL).

Mr. Grassi received his LL.B. (Hons) from the Federal University of Minas Gerais. He earned a scholarship from the Italian Ministry of Foreign Affairs to complete part of his LL.B. at the University of Bologna. Mr. Grassi also holds a Certificate from The Hague Academy of International Law and an LL.M. from the London School of Economics and Political Science.

Mr. Grassi is admitted to practice in Brazil and Portugal, and is registered as a European lawyer with the Solicitors Regulation Authority (SRA) in England and Wales. He is fluent in Portuguese and Italian, and speaks Spanish.

Show More


Unsolicited e-mails and information sent to Morrison & Foerster will not be considered confidential, may be disclosed to others pursuant to our Privacy Policy, may not receive a response, and do not create an attorney-client relationship with Morrison & Foerster. If you are not already a client of Morrison & Foerster, do not include any confidential information in this message. Also, please note that our attorneys do not seek to practice law in any jurisdiction in which they are not properly authorized to do so.