Prado, Santarossa, a firm dedicated to supporting companies with integrated legal solutions, has launched in São Paulo. With four founding partners (Lucilene Prado, Irina Santarossa, Breno Bassoli, and Matheus Fornazari), the firm builds upon a shared track record spanning more than a decade.
“This shared experience gave rise to a distinctive way of working: one that is close, rigorous, integrated, and aligned with the realities of the client and the business. We believe that law creates value when it serves as a management tool—rather than an end in itself,” says Lucilene.
With a practice geared toward corporate needs and professionals who have worked at major companies, the firm—which emphasizes tax law—operates based on a vision that connects legal, operational, financial, and strategic dimensions. This perspective is reflected in everything from complex tax matters to the team’s work in the third sector and real estate, always with a focus on the tangible impact of every decision and on risk management.
The firm also brings experience in supporting foreign companies entering Brazil or structuring their operations in the country, helping them navigate the local legal, regulatory, tax, and operational landscape. The goal is to provide these companies with clear benchmarks for making decisions and moving forward in the Brazilian market.
“The strength of our practice is enhanced by a team with experience in the legal departments of major corporations, as well as in auditing, multidisciplinary firms, governance structures, and boards of directors. This allows us to look at legal issues alongside the effects they have on the business,” explains Irina.
The partners’ diverse backgrounds and experience enable Prado, Santarossa to structure concrete paths that support decision-making, strategic initiatives, and day-to-day business operations, explains Matheus. “Our role is to transform complexity into clear direction—with precision, accountability, and a grounded sense of reality. We don’t just deliver abstract legal interpretations; we offer concrete guidance, model solutions, assess legal and financial impacts, and structure responses aligned with the client’s operations and objectives,” he adds.
The partners also emphasize that the firm aims to foster close, long-term client relationships. “We act as an independent extension of the client; we are accessible, available, and deeply engaged. Relationships are built through day-to-day interaction: understanding the current context, anticipating issues, and being present when it matters most,” says Breno.
Headquartered in São Paulo, the firm begins operations by advising domestic and foreign companies of various sizes and sectors, handling matters within Brazil as well as operations with international connections.
Learn more about the founding partners:
Lucilene Prado: Over 33 years of professional experience in Tax and Corporate Law. Her background includes leadership roles at market-leading companies such as Alpargatas and Natura—where she served as Legal Director until March 2014 and as a Technical Consultant to the Audit and Risk Management Committee until 2015. In addition to having been a partner at a boutique law firm for 12 years, Lucilene is an active educator at Insper and other institutions; she also serves on boards of directors and fiscal councils, and acts as a consultant for finance, audit, and risk committees at various companies.
Irina Santarossa: Nearly 20 years of extensive experience across a wide range of Corporate and Tax Law matters—spanning advisory work and business structuring to strategic litigation, as well as issues related to the impacts of tax reform. She holds an MBA in Finance from Insper and a specialization in Tax Law from IBET. She began her career at a law firm with operations in 32 countries and worked for over 17 years at a boutique law firm, where she was a partner. She was a professor at the Link School of Business.
Breno Bassoli: He worked for over 10 years at a boutique law firm and was an assistant professor at the Link School of Business. His practice focuses on tax consulting for companies across various sectors and includes nearly a decade of work on tax reform issues—specifically assessing the impact on clients’ businesses and advising them during discussions regarding tax reform proposals. He holds a specialization in Tax Law from IBET.
Matheus Fornazari: Has been working in the tax field for over 10 years, with experience in tax consulting as well as judicial and administrative tax litigation. His background includes strategic roles at Big Four firms and law firms. He holds degrees in Law and Accounting, postgraduate qualifications in Civil Procedural Law and in Corporate Law, Capital Markets, and New Technologies, and an LL.M. in Tax Law and Procedure.
