Grünewald Law Firm
Boutique Law Firm · Founded in 2011

Grünewald Law Firm

Strategic legal advisory in Mergers & Acquisitions

Complex corporate transactions, due diligence and business reorganizations — with technical rigor and economic rationality.

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Legal expertise aligned with economic rationality.

Grünewald Law Firm, founded in 2011, provides strategic legal advisory to companies, investors and economic groups — both national and foreign — in complex and structured transactions.

Focus & Specialization

Specialized practice in Mergers & Acquisitions and Corporate Law, leading corporate transactions from planning and structuring through closing and post-closing.

National Presence

Comprehensive coverage across Brazil, directly or through qualified correspondents, addressing cases under state and federal jurisdictions.

Boutique Profile

Highly personalized services, technical rigor, integrated economic rationale, and direct partner involvement to mitigate transaction risks.

Our services reflect the technical and academic legacy of our founder, combining legal expertise with economic logic and operational efficiency.

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Advisory and preventive, close to decision-makers.

Our practice focuses on areas directly related to corporate operations and corporate transactions, with special emphasis on:

Corporate Law

Comprehensive legal assistance in mergers, acquisitions, incorporations, spin-offs, corporate reorganizations, shareholders' and partners' agreements, corporate governance, holding structures, judicial recovery and bankruptcy, and the structuring and consolidation of corporate groups.

Mergers & Acquisitions M&A

Complete coverage of buy-side and sell-side transactions: legal planning, transaction structuring, due diligence execution, negotiation and contract drafting, implementation and post-closing monitoring.

Business Law

Strategic advisory focused on business activity: commercial contracts, asset organization, business structuring, legal risk analysis and support for corporate decision-making.

Intelligence Compliance & Due Diligence

Advanced legal investigation methodologies and strategic analysis to identify legal, regulatory and corporate risks, verify hidden liabilities, assess partner integrity and support regulatory compliance in transactions and investments.

Integrated approach — legal expertise, economic rationality and risk mitigation, with advisory close to decision-makers.

Structuring

Legal design of the transaction

Corporate organization, definition of instruments, liability analysis and documentation alignment before the main negotiation.

Due diligence

Measurable legal risk

Mapping liabilities, contingencies, contracts, governance and regulatory exposure to support price, guarantees and conditions precedent.

Post-closing

Integration and governance

Follow-up on post-closing obligations, implementation of corporate acts and support for operational consolidation.

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Close leadership, absolute confidentiality.

The firm is led and represented by a managing partner who coordinates all aspects of the practice. It is strict policy of this firm to maintain absolute confidentiality and not disclose information about clients, collaborators or activities under our engagement.

Leadership
Thor Lincoln Nunes Grünewald

Thor Lincoln Nunes Grünewald

Managing Partner · Head of M&A
OAB/ES n° 18.318
Background
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Legal Practice

Over 13 years in corporate disputes, M&A, company dissolution, asset protection and strategic tax planning.

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Finance & M&A

Manager and Chemical Engineer with over 5 years in financial modeling, FP&A, Valuation and Turnaround — Gullweig Finance and Trudvang Capital.

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Academic Background

Corporate Law (FGV), Finance & Valuation (USP/ESALQ), Process Engineering (PUC Minas), Tax Planning (FBT) and M&A (Insper).

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Strategic Vision

Profile combining Law, Engineering and Corporate Finance in the execution of complex contracts and mitigation of economic and legal risks.

Join Us

Two official selection and recruitment channels active for those who wish to join our team.

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Where to find us.

Linhares

Av. Presidente Café Filho, 475

Novo Horizonte (BNH)

Linhares/ES - CEP 29902-400.

Tel (27) 3373-1513

Hours Mon–Fri, 9am to 6pm

Get directions

Use the form to send us a message. Our services are strictly in-person and by appointment only. We do not provide legal advice online — messages of this nature will be ignored.

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Privacy Policy and data handling.

This policy describes how personal data submitted through this site is processed, in accordance with Brazilian Law No. 13,709/2018 (LGPD). A taxpayer ID may be requested as an identification and fraud-prevention measure, not to automatically create an attorney-client relationship.

Data controller

Grünewald Advocacia (CNPJ 26.706.172/0001-79), located at Av. Presidente Café Filho, 475, Novo Horizonte (BNH), Linhares/ES, ZIP 29902-400, Brazil, is the controller of the personal data processed through this site.

Data collected

Name, taxpayer ID, email, phone, subject and message provided in the form, plus technical metadata (IP address, browser and timestamp) recorded for security.

Purposes

To identify the sender, review the communication, respond through official channels and prevent fraud and abuse.

Legal basis

The data subject's consent and the legitimate interest in security and in responding to institutional contacts (art. 7, I and IX, of the LGPD).

Sharing

Data is never sold. It is processed by email-delivery and anti-fraud verification providers strictly for the purposes above.

Retention

Messages are kept for as long as needed to handle the request. Local contingency records are used only if email delivery fails and may be limited by operational retention policy.

Security

We apply technical and organizational measures — encrypted connection (HTTPS), origin restriction and anti-fraud verification — to protect the data processed.

Your rights

Under the LGPD, you may request at any time:

  • confirmation that processing exists and access to your data;
  • correction of incomplete, inaccurate or outdated data;
  • anonymization, blocking or deletion of unnecessary or non-compliant data;
  • portability and information about sharing;
  • withdrawal of consent.

To exercise any of these rights, use the contact form on this page describing your request.

Last updated on June 20, 2026.