William Carmona Maya

William Carmona Maya is a partner at Carmona Maya, Martins e Medeiros Sociedade de Advogados, known as CMMM, a Brazilian law firm based in Sao Paulo. His work in banking and financial law has earned the firm recognition as Banking Law Firm of the Year in Brazil at the Corporate INTL Global Awards 2026.

A Sao Paulo law firm serving business

CMMM is a Brazilian legal services firm whose practice covers civil, labour and banking law, among other areas. Based in Sao Paulo, the country's principal financial and commercial centre, the firm advises businesses and individuals on both advisory and contentious matters, combining the disciplines that companies most often need under a single roof. Within this practice, the firm's banking and financial law capability, associated with partner William Carmona Maya, addresses the specialised legal questions that arise in Brazil's highly regulated financial sector.

Banking law in the Brazilian market

Banking law is one of the most technical and closely regulated fields of legal practice. In Brazil, financial activity operates within a detailed regulatory framework and involves banks, lenders, borrowers and other market participants whose relationships are governed by a combination of contract, statute and regulation. Advising in this area calls for a firm grasp of how credit is extended and secured, how financial contracts are structured and enforced, and how disputes between financial institutions and their counterparties are resolved. A firm that also practises civil and labour law can approach banking matters with an understanding of the wider legal context in which financial institutions and their clients operate.

Banking and financial law practices typically assist clients with matters such as:

• Advice on banking and financial contracts and credit arrangements
• Structuring and documenting lending and security
• Regulatory questions affecting financial activity
• Recovery of debts and enforcement of financial obligations
• Litigation and dispute resolution involving banks and their counterparties

Combining specialist and everyday legal needs

The advantage of a firm such as CMMM is that it pairs a specialised banking practice with the civil and labour law services that businesses require day to day. Financial disputes and transactions rarely arise in isolation; they interact with contractual, corporate and employment questions, and a firm able to address these connected areas can give clients joined-up advice rather than treating each issue in a silo. Sao Paulo's position as Brazil's financial hub makes it a natural base for a banking-focused practice, close to the institutions and businesses that generate this work.

Recognition in a regulated sector

Recognition as a leading banking law firm reflects the trust placed in an adviser to handle some of the most technical and closely regulated work in the legal market. Financial matters demand precision and a firm grasp of a detailed regulatory framework, and the consequences of error can be significant, so clients look for advisers with genuine depth in the field. An award of this kind acknowledges a firm's specialist capability in banking and financial law, supported by the broader civil and labour practice that businesses rely upon day to day. For a Sao Paulo firm operating in Brazil's principal financial centre, it also reflects the confidence that banks, businesses and individuals place in a practice that can address their financial and everyday legal needs together, with the rigour that the sector requires and the practical understanding that clients value.

For banks, businesses and individuals dealing with financial and banking matters in Brazil, William Carmona Maya and CMMM offer specialist banking law expertise supported by a broader civil and labour practice. The firm's recognition as Banking Law Firm of the Year in Brazil at the Corporate INTL Global Awards 2026 underlines its standing as a trusted adviser in the country's banking and financial sector.