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We are tax lawyers experts with background in accounting and vastly experienced in complex tax matters, with solid academic background and proven professional experience, both in Brazil and in the United States.

Bueno de Oliveira

For more than 10 years, Matheus has been the head of the tax department of renowned São Paulo law firms, with a total of 20 year of professional experience as a lawyer. His experience with accounting and international matters enables him to handle complex tax cases. He holds a J.D. from USP (University of São Paulo), with Post-Graduation in International Tax and in Tax Law from IBDT (Brazilian Institute of Tax Law), as well as an LL.M. in Taxation from Georgetown University Law School (GULC), with certification in International Taxation. Also, he has successfully passed the New York Bar Exam.

Moraes e Castro

Leonardo has 15 years of experience practicing law in SP and NYC offices at renowned law firms and in "Big 4" auditing companies. He is a former Administrative Judge both of State Tax Court of São Paulo (TIT/SP) and São Paulo City Tax Council (CMT/SP). He is a professor of the B.A. in Accounting and MBA in Tax Management at FIPECAFI Business School in SP, as well as an invited lecturer of several MBA and LL.M. courses in Brazil (in São Paulo, Vitória, Porto Alegre cities). He has currently written 17 books and has more than 100 published articles, in Brazil and abroad, being recognized and awarded with 5 international prizes and scholarships from the International Bar Association (IBA), Transnational Taxation Network (TTN) and International Fiscal Association (IFA).

Expertise: TAX

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Tax Planning and Preventive Tax Guidance

Legal Opinions and Tax Memoranda for important decision-making process of multinational companies, family business and high-net worth individuals, and day-to-day Tax Consulting and assistance for routine matters with tax and accounting impacts on businesses.
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International Investments

Tax Advisory in Inbound and Outbound Transactions, with main focus on Foreign Direct Investments, Repatriation of Funds, Private Equity Funds and Venture Capital, Foreign Loans, Thin Capitalization and Transfer Pricing rules, Double Tax Treaties, Controlled Foreign Companies rules, Hybrid Financial Instruments.
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Tax Litigation

Administrative and Judicial level-Judicial and Administrative measures, both preventive (writ of mandamus, injunctions, etc.) and defenses (appeals, etc.) on tax matters both Federal, State and Municipal.
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Private Wealth Planning

Estate, Succession and Tax Planning for High Net Worth Individuals, Families and expatriates.


Our firm has been recognized as one of the best in Tax Law in Brazil


“...Fantastic and very clear! I really appreciate how Leonardo summarize the work so clearly and indicate straight conclusions.”

"... it is wonderful to be able to have an advisor like you, with such a mastering of Law, you manage to give the theoretical legal vision, and, at the same time, the understanding of those who judge and alert you to practical risks.”

“...Matheus Bueno de Oliveira is ‘a competent and reliable lawyer’.”

“…I had the pleasure of working with Dr. Fernanda, a well-prepared professional, who has the ability to understand the client's needs and present appropriate and well-grounded solutions, regardless of the complexity of the topic.”

+55 (11) 5225-8113


Av. Brigadeiro Faria Lima, 4055  - 1º andar
Av. Juscelino Kubitscheck, 1327 - 8th floor
São Paulo - SP, Brasil
São Paulo - SP, Brazil
CEP: 04538-133
ZIP: 04543-011