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About Us

A firm built on technical rigour, ethics and proximity

We present our law office with a commitment to delivering high-calibre legal solutions, built on decades of experience, unwavering ethics and relationships of trust with our clients.

Sein & Proença lawyers closing a meeting with clients

About Us

A firm built on technical rigour, ethics and proximity

Sein & Proença Consultoria Jurídica is a firm specialised in corporate legal advisory and consulting, founded to deliver personalised service and intelligent legal solutions to companies and individuals alike.

We combine deep technical knowledge with a strategic approach geared to our clients’ results, acting proactively to anticipate risk and protect their interests.

Companies and individuals
Complex corporate structures and individual matters receive the same technical rigour.
Results-driven
Every opinion starts from reading the business, not only the letter of the law.
Risk anticipation
Proactive work to surface exposures before they turn into liabilities.

Our Values

Core values

Four principles underpin every decision, opinion and filing we sign.

Ethics

We act with absolute integrity at every stage of the legal process, ensuring transparency and honesty in all relationships.

Excellence

We pursue the highest standards of technical and strategic quality, delivering robust and effective legal solutions.

Commitment

Our commitment goes beyond the contract — we are our clients’ partners in building sustainable results.

Innovation

We use modern tools and creative approaches to deliver legal solutions aligned with today’s business landscape.

Our Team

Lawyers who work as one

Sein & Proença is made up of highly qualified lawyers trained at renowned Brazilian institutions, with hands-on experience across the most varied fields of law. Our multidisciplinary team works in an integrated way, ensuring every client receives complete, responsive and high-quality service.

We cultivate a culture of continuous learning, taking part in conferences, publications and ongoing legal-update projects, and remain directly connected with new professionals who intend to enter the most varied legal careers.

  • Multidisciplinary team
  • Integrated practice
  • Continuous updating
  • Trained at renowned institutions
Sein & Proença multidisciplinary team in a working session

Why Us

Why Choose Sein & Proença?

Tradition and Credibility

Years of established practice in the legal market, with a proven track record of favourable outcomes and satisfied clients across different sectors of the economy.

Strategic Vision

Our professionals go beyond legal analysis — we understand the client’s business and deliver opinions with real impact on the company’s strategic decisions.

Agility and Responsiveness

In a dynamic business environment, time is a valuable asset. We guarantee fast responses without giving up the technical depth each matter requires.

Long-Term Relationships

We build lasting partnerships with our clients, following their evolution and growth over time with dedication and closeness.

Let’s talk

Ready to build the right legal strategy for your case?

We are ready to listen. Book an initial consultation and find out how we can support your business with intelligent, effective legal solutions.

Phone and WhatsApp(11) 98983-0162
São Paulo/SPAvenida Paulista, 1.471