BFBM – Barroso Fontelles, Barcellos, Mendonça & Associados
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A go-to firm for data protection and privacy litigation, BFBM – Barroso Fontelles, Barcellos, Mendonça & Associados attracts regular instructions from international, multinational, and domestic technology companies, banks, social media enterprises, and start-ups. The team assists with privacy by design and AI regulatory compliance, alongside advising on privacy-related lawsuits, ANPD public consultations, data breaches and administrative investigations. Eduardo Mendonça is a litigation specialist who frequently acts before the Brazilian Superior Courts, including the Federal Supreme Court and Superior Court of Justice. Felipe Monnerat is a name to note for advice on regulatory restrictions and consumer and workers’ rights. André Zanatta and Fernanda Mascarenhas are no longer at the firm.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘The team is very focused, competent, and always gives us alternatives, even if the problem brought to them seems to be too complex. ’
‘I would like to highlight the firm's work in litigation in higher courts, carried out very closely with the client, with a vast knowledge of the business (priorities and limitations), very well reflected in the arguments. I would also like to highlight the firm's work in the area of data protection.'
Key clients
- Apple
- ByteDance (TikTok)
Work highlights
Advised Apple on consumer requests and court orders, focusing on privacy and data protection issues under the LGPD.


