Home – Services
In today’s competitive business environment, every investment decision requires legal certainty. This is where business law ceases to be mere bureaucracy and becomes a competitive advantage. TAGD advises your company across all fronts: greenfield and brownfield projects, mergers and acquisitions, complex negotiations, due diligence, corporate governance and commercial contracts. We understand that every transaction serves a business objective, and that objective guides our legal strategy. We therefore deliver more than legal opinions. We work alongside decision-makers, anticipating risks, structuring transactions and unlocking opportunities. On a day-to-day basis, we operate as an extension of your in-house legal team, reporting directly to shareholders and C-suite executives with the agility the market demands and the technical depth required for corporate transactions. Whether opening a new facility, acquiring a competitor, reorganizing a corporate group or safeguarding a key contract, you will have a team by your side that speaks the language of business and has command of the law. The result is straightforward: greater predictability to grow with confidence.










Corporate and business law governs companies’ activities and their relationships with shareholders, investors, officers and the market. It covers matters ranging from incorporation and corporate structure to complex transactions such as mergers and acquisitions (M&A), corporate reorganizations, commercial contracts and the implementation of sound corporate governance practices.
In Brazil, this field is governed by statutes such as the Brazilian Corporations Law (Law No. 6.404/1976) and the Civil Code, which regulate matters ranging from shareholders’ agreements to officers’ duties. Publicly held companies are also subject to the Brazilian Securities and Exchange Commission (CVM), which regulates and supervises the capital markets. In this environment, due diligence procedures and clear governance rules are essential to mitigate risk and provide certainty for each investment decision.
TAGD turns this complexity into strategy. We advise companies across all fronts—from greenfield and brownfield projects to negotiations and day-to-day contracts—always focused on protecting their assets and enabling growth. If you are looking for counsel who understands corporate and business law and sees your business as a whole, speak with a TAGD specialist.
Q: What does a corporate and business lawyer do?
A: Corporate and business lawyers advise companies on strategic and legal decisions, including corporate structuring, contracts, mergers and acquisitions, governance and risk prevention, while protecting the business and its shareholders.
Q: What is the difference between business law and corporate law?
A: Corporate law is a branch of business law focused on relationships among shareholders and on a company’s corporate structure. Business law is broader and also encompasses contracts, M&A transactions and the company’s activities as a whole.
Q: When does my company need due diligence?
A: Whenever a material transaction is contemplated, such as acquiring or selling a company, receiving an investment or entering into a significant partnership. Due diligence identifies risks and liabilities before a decision is made.
Q: Why have a shareholders’ agreement?
A: Because it establishes clear rules on decision-making, the admission and withdrawal of shareholders, profit distributions and deadlock resolution, helping prevent disputes and protect all parties involved.
Q: What is the difference between a greenfield and a brownfield project?
A: A greenfield project is developed from the ground up, with no pre-existing structure. A brownfield project involves an existing asset or operation that is acquired, expanded or reconfigured. Each requires a different legal strategy and due diligence process.
Q: How does business law help reduce contractual risk?
A: It provides clearer clauses, allocates responsibilities, protects assets and helps prevent future disputes in strategic negotiations and day-to-day operations.
Q: When should legal counsel be engaged for mergers and acquisitions?
A: Ideally, counsel should be involved from the outset, because early involvement improves due diligence, strengthens negotiations and reduces the risk of undisclosed liabilities in the acquisition or sale of a company.
Q: Why is corporate governance important for privately held companies?
A: It establishes rules for decision-making, transparency and oversight among shareholders and officers, preventing internal disputes and providing a stronger foundation for growth and investment.


















Une a qualidade e a proximidade de um escritório boutique à agilidade de uma banca moderna, entregando serviços jurídicos sob medida com abordagem pragmática, direta ao ponto e linguagem empresarial.





TAGD Advogados (Terciotti Andrade Gomes Donato Advogados) is a multidisciplinary business law firm with more than 10 years of experience, offices in São Paulo, Rio de Janeiro and Belém, and partners throughout Brazil and abroad. Our practice encompasses corporate law, tax, energy and dispute resolution, led by partners Maurício Terciotti, Daniel Andrade, Edgar Gomes and Raphael Donato. We combine the personal attention of a boutique firm with the agility of a modern practice, delivering tailored legal counsel through a pragmatic, business-oriented and results-focused approach.
Office Hours:
Sunday: Closed.
Monday: 09:00–19:00.
Tuesday: 09:00–19:00.
Wednesday: 09:00–19:00.
Thursday: 09:00–19:00.
Friday: 09:00–19:00.
Saturday: Closed.
Data Protection Officer (“DPO”): Patricia Barcellos
Deputy Data Protection Officer: Wagner Barros
Email: compliance@tagdlaw.com.br