I turn institutional complexity into clear decisions.
Business and tax lawyer, executive and advisor, Leonardo works at the convergence of strategy, law and business internationalization — author of Organizational Entropy and creator of the IANNONE Model. He leads three fronts — the method's products, Estúdio Fiscal and Iannone Advocacia — and runs operations between Brazil and the world.

Three fronts, one reading of a company.
Products
Masterclass, Digital Book and Diagnosis to learn, understand and measure Organizational Entropy.
- Masterclass — the main path
- Digital Book — the method's thesis
- Diagnosis — the in-company measurement
Estúdio Fiscal
Tax intelligence for companies in Brazil, with its own brand and team.
- Tax analysis and planning
- BPO and accounting
- Asset holding structures
Iannone Advocacia
The law firm behind Leonardo's business work, for cases that require legal structure.
- Business law
- Tax law
- Corporate and contracts
Estúdio Fiscal
Tax intelligence for companies in Brazil, with its own brand and team.
- Tax analysis and planning
- BPO and accounting
- Asset holding structures
Iannone Advocacia
The law firm behind Leonardo's business work, for cases that require legal structure.
- Business law
- Tax law
- Corporate and contracts
Operations between Brazil and the world, in both directions.
Leonardo guides companies leaving Brazil and companies arriving: products, services and structures crossing jurisdictions, with legal and strategic reading at the same time.
From Brazil to the world
Expanding a Brazilian operation: taking products and services abroad, opening structures in other countries and organizing the international operation.
From the world to Brazil
Entering and operating in Brazil from abroad: corporate, tax, contractual and regulatory structure to start right.
From Brazil to the world
Expanding a Brazilian operation: taking products and services abroad, opening structures in other countries and organizing the international operation.
From the world to Brazil
Entering and operating in Brazil from abroad: corporate, tax, contractual and regulatory structure to start right.
4
Own structures in operation: Brazil, Uruguay, the US and the BVI.
~80
Companies and individuals guided on internationalization, from Brazil into operations abroad.
~20
Companies incorporated in Brazil and abroad.
US$ 30M
Projected revenue of the international hub (IFELS) within 5 years.
Projections are estimates — not realized revenue.
A trajectory where every stage feeds the method.
- 01Bandes
14+ years
Inside a development bank — the origin of the command of funding, credit and institutions.
- 02Fundap
300+ companies
Analyzed one by one — the empirical base of the diagnostic eye.
- 03Law and consulting
Firm founded in 2016
Law applied to business decisions.
- 04Studio Fiscal
Own unit since Jan 2026
Tax recovery and planning.
- 05Internationalization
4 countries + BVI
Effective projects in the US, Uruguay, Venezuela and the UAE, with an advisory structure in the BVI.
- 06IFELS and IDUS
In structuring
International licensing and R&D hub, with the first international joint venture being structured.
Law, Production Engineering and Communication in one reading — not accumulation; a system.
Selected work — no clients named
- Structuring of a multinational operation across Brazil, Uruguay, the US, Venezuela and the UAE.
- Legal structuring of an international joint venture.
- Over 300 company analyses under the Fundap program.
- Tax recovery and planning for companies across industries.
- Corporate governance and compliance programs.
Next step
Start with the method — or bring your operation.
The IANNONE Model products are the path open to any leadership. Company cases and cross-border operations go through the contact triage.