Cassio’s practice focuses on insurance, reinsurance and pensions with an emphasis on claims handling, litigation, as well as mediation and arbitration. He is a professor of a postgraduate course on insurance law at Escola Nacional de Seguros and the author of several publications on insurance law matters. He is a member of the International Insurance Law Association, Brazilian Section (AIDA).
- Chambers Global – Insurance (2016–2018)
- Chambers Latin America – Insurance (2016–2019)
- The Legal 500 – Dispute Resolution; Insurance (2016).