Direito Societário
Corporate Law
Corporate acts for limited liability companies (Ltda.) and closely-held corporations (S.A.); spin-offs and conversions of corporate type; regularization of corporate books; governance structuring.
Corporate & M&A Lawyer · OAB/SP 475602
Júlia Castellari Ribeiro
Corporate Law, Contracts & Capital Markets
Brazilian attorney (OAB/SP) advising from day-to-day corporate housekeeping to the architecture of a deal — shareholders' agreements, holding structures, succession planning and fundraising.
Corporate law, structured with precision.
01 / Profile
Profile
A career built entirely within corporate law and contracts, with strong exposure to capital markets and M&A.
From day-to-day corporate housekeeping — corporate acts, books, governance — to sophisticated matters such as shareholders' agreements, holding structures, succession planning and fundraising. Experience spanning a publicly-listed company's IPO, investment agreements and structured operations at a startup, due diligence, and CVM (Brazilian SEC) compliance. A strong fit for in-house legal (corporate) or law-firm roles across Corporate, M&A, Contracts and Capital Markets, at mid-level (Pleno).
02 / Areas of Practice
Areas of practice
Deal Structuring
M&A & Structured Operations
Assembly of structured operations; corporate and tax studies to define the best structure per client objective; due diligence; review of the transaction history of corporations (S.A.).
Drafting & Negotiation
Contracts
Investment agreements with individual and corporate investors; SaaS contract review and negotiation; service agreements for technology companies; amendments, powers of attorney, term sheets and conditions-precedent checklists.
CVM Compliance
Capital Markets
Full participation in a group holding's IPO; control of obligations toward shareholders and investors; CVM compliance — material facts, market notices and the reference form.
Patrimonial
Wealth & Succession Planning
Patrimonial holdings, donation instruments and shareholders' agreements drafted within a succession context.
Controls
Governance
Robust shareholders' and quotaholders' agreements; control of directors' and officers' mandates; organization of corporate books.
03 / Experience
Professional experience
Peluso, Guaritá Borges e Rezende Advogados
Associate Lawyer · Advogada Plena
- Drafting routine corporate acts for limited liability companies (Ltda.) and closely-held corporations (S.A.).
- Corporate operations: spin-offs and conversion of corporate type.
- Analysis of S.A. transaction history to regularize corporate books.
- Drafting shareholders' and quotaholders' agreements to structure robust governance.
- Wealth & succession planning: patrimonial holdings, donation instruments and succession-context agreements.
- Review of service agreements for technology companies.
- Drafting legal documents: extrajudicial notices, settlement terms, contract amendments, contracts and powers of attorney.
- Leading registration processes for corporate acts.
- Direct client contact and meetings for alignment and clarification.
Monteiro, Rusu, Cameirão e Bercht Advogados
Junior Lawyer · Advogada Júnior
- Owned the day-to-day corporate work of a startup: control of directors' and officers' mandates.
- Drafting medium- and high-complexity corporate acts; coordinating registration.
- Control of obligations toward shareholders and investors.
- Drafting and negotiating investment agreements with individual and corporate investors.
- Conditions-precedent checklists for investment agreements.
- Direct contact with directors and shareholders; coordinating client and investor meetings.
- Review and negotiation of the startup's SaaS contracts.
- Assembly of structured operations; corporate and tax studies to define the best structure.
Almeida Prado & Hoffmann Advogados Associados
Junior Lawyer · Advogada Júnior
- Day-to-day corporate work for limited liability companies.
- Drafting low- and medium-complexity contracts.
- Drafting legal opinions on corporate matters.
- Analysis of corporate structures for clients.
Hidrovias do Brasil S.A.
Legal Intern
- Day-to-day corporate work across all group companies: control of board and officer mandates.
- Drafting low- and medium-complexity corporate acts; coordinating registration.
- Assisting with the reference form (formulário de referência).
- Control and drafting of group powers of attorney; organizing corporate books.
- Assisting with CVM compliance; drafting material facts and market notices.
- Participation in audits; analysis of NDAs.
- Control and amendment of stock option agreements.
- Participation in the entire IPO process of the group holding.
DDSA — De Luca Derenusson Schuttoff e Azevedo Advogados
Legal Intern
- Drafting low-complexity corporate acts.
- Participation in audits.
- Research of legislation and case law.
- Coordinating registration of corporate acts.
04 / Education & Languages
Education and languages
Education
Postgraduate (Lato Sensu) — Business / Corporate Law
Fundação Getulio Vargas (FGV)
Mar 2023 — Jun 2024
Bachelor of Laws (LL.B.)
Universidade Presbiteriana Mackenzie — Higienópolis Campus
Aug 2016 — Jan 2022
Languages & International
Portuguese
Native
English
Advanced
- High School exchange — Vancouver, Canada (2014)
- English course — Embassy English, Oxford, UK (2014)
- Legal English course — Mackenzie Language Center (2017)
- Advanced English — ICBEU, São José dos Campos (2006–2013)
05 / Selected Highlights
Selected highlights
IPO experience
Participated in the full IPO process of a listed group's holding — Hidrovias do Brasil S.A.
Capital markets & CVM compliance
Material facts, market notices and the reference form prepared under CVM requirements.
Startup corporate counsel
Owned the day-to-day corporate work and supported investment rounds end to end.
M&A & structured operations
Corporate and tax structuring to define the best route for each client objective.
7+ years in corporate law
A continuous corporate practice since 2018, including internships at leading firms.
Fluent in English
International academic background across Canada and the United Kingdom.
06 / Contact
Let's discuss the next deal.
Available for in-house legal (corporate) or law-firm roles across Corporate, M&A, Contracts and Capital Markets, at mid-level (Pleno).
OAB/SP 475602
São Paulo, Brazil
Corporate & M&A
© 2026 Júlia Castellari Ribeiro