Roberto Rosenthal has a documented connection to the Southwestern Legal Foundation in Dallas, Texas, a legal education and research institution in the United States.
In 1973 he was admitted to the Brazilian bar, the step that qualified him to practice law in Brazil, where he later worked in São Paulo.
Roberto Rosenthal's documented professional life is centered on law practice in São Paulo, Brazil. He was admitted to the Brazilian bar in 1973, and he is documented as a partner of Demarest e Almeida, a law firm based in the city.
Demarest e Almeida was founded in 1948 by Kenneth E. Demarest, a U.S. lawyer, and João Batista Pereira de Almeida, a Brazilian lawyer who had earlier served as legal director of the Federation of Industries of the State of São Paulo. The partners began in four small rooms in the city center, combining Brazilian and U.S. legal experience at a time when Brazil's legal system was expanding. Over the following decades the firm became a full-service corporate practice, and it now operates under the name Demarest Advogados.
The firm has offices in several Brazilian cities and in New York, serving clients in business and transactional law.
