Strategic legal practice at the center of decisions

Your defense begins with the right strategy

Technical / strategic practice

Practice areas

Tax

Does your company need tax planning? Do you have debts registered as active tax debt (dívida ativa) or have you received a tax assessment? Learn about the legal options for regularization, planning and tax defense under Brazilian law.

Real Estate

Are you buying, selling or developing a property in Brazil? Learn about the legal aspects of contracts, documentation, registries, regularization and real estate disputes.

Health Law

Did a health plan deny coverage? Understand the legal criteria related to procedures, medication, ABA therapy, home care and patients' rights.

Civil

A breached contract, a collection claim or a financial loss? Learn about the legal options related to obligations, civil liability and dispute resolution.

Corporate

Disagreements between partners, contracts or a corporate reorganization? Learn about legal aspects of governance, corporate transactions and risk management.

Energy Law

A solar project, an energy contract or difficulty accessing the grid? Understand legal aspects of distributed generation, ANEEL regulation and the free energy market.

Our process is intentional.

Technical rigor with structured legal strategy.

01

Strategic assessment

  • Case analysis
  • Legal context
  • Client objectives
  • Risks involved
02

Structuring the legal strategy

Defining the technical path, the priorities and the core arguments to support the work.

03

Building the legal narrative

Organizing facts, evidence and legal grounds into a precise, coherent and persuasive narrative.

04

Execution and technical refinement

Continuous monitoring of the strategy, with tactical adjustments as the case evolves.

About us

Institutional experience, academic depth and strategy-driven practice.

Bernardo Marinho Barcellos

Founding partner

Bernardo Marinho Barcellos

  • Law degree from UniCEUB, 2009.
  • Specialization in Public Law.
  • Master's degree in Tax Law from the Catholic University of Brasília.
  • Doctoral candidate in Tax Law at UniCEUB.
  • Public attorney at the Federal District Development Agency (Terracap), with strategic practice in Public Law and Real Estate Law.
  • President of the Public Legal Practice Commission of the States of the DF.
  • Served as Councilor of the OAB/DF (Brasília Bar Association) in the 2022/2024 term.
  • Professor of Tax Law and author of legal publications.
Débora Costato

Partner

Débora Costato

  • Law degree from UniCEUB and degree in Biology from the University of Brasília (UnB).
  • Master's degree in Bioethics from the University of Brasília (UnB).
  • Doctoral candidate in Bioethics at the School of Medicine of the University of Brasília (UnB).
  • Practice connecting biolaw, bioethics and fundamental rights.
  • Vice-president of the RIEx Biolaw Commission.
  • Served on the Bioethics Commission and on the Family and Succession Law Commission of the OAB/DF.
  • Academic work focused on human dignity, bioethics and fundamental rights.

Two careers, one strategic vision.

Academic depth, institutional experience and strategy-driven practice.

Contact the firm
Bernardo Marinho Barcellos and Débora Costato

Contact

Contact the firm through WhatsApp or follow our publications and updates on Instagram and YouTube.

Marinho Barcellos e Costato Advogados Victoria Office Tower Setor de Autarquias Sul, Quadra 4 — Sala 930
Asa Sul · Brasília — DF · Brazil · CEP 70297-400
In-person appointments by prior arrangement. Get directions (Google Maps)