LAWYER PROFILE
Maria Castelos

Maria Castelos

Europe 2026

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Chambers ranking badge

Ranked in 4 practice areas

About

Provided by CS'Associados

Europe

Practice Areas

Maria Castelos divides her practice between Banking and Finance, especially on acquisition, project and structured finance deals, and M&A/Private Equity and Capital Markets, which allows her to take a holistic approach to the advice she gives to Clients as she has a deep understanding of the different aspects of deals. She has long standing experience in advising corporations, asset managers, investors and lenders across different industry sectors, most recently with a particular focus on banking and insurance, infrastructure, aviation, energy, water and telecommunications. With almost thirty years' of experience, she has been consistently recognised in the market as one of the leading practitioners in her main areas of practice.

Career

Lisbon Law School, Catholic University, 1991. LL.M. in Banking and Finance, University College London, 1994-95. Post-graduate Degree in Securities Law, University of Lisbon, Faculty of Law, 1998. Trainee at PLMJ, A.M.Pereira, Sáragga Leal, Oliveira Martins, Júdice & Associados, 1991-93. Member of the Portuguese Bar Association, 1993. Associate and Senior Associate at PLMJ, A.M.Pereira, Sáragga Leal, Oliveira Martins, Júdice & Associados, 1993-99. Partner at PLMJ, A.M.Pereira, Sáragga Leal, Oliveira Martins, Júdice & Associados, 2000-09. Partner at CS'Associados, 2009.

Professional Memberships

Portuguese Bar Association

Personal

Languages-English, French and Spanish

Chambers Review

Provided by Chambers

Chambers European Guide

Projects - Portugal

Band 1
Band 1

Individual Editorial

Maria Castelos is well versed in handling the financing and restructuring of projects, often through the issuance of bonds. She is experienced in projects across energy, healthcare and transportation sectors.

Corporate/M&A: The Elite - Portugal

Band 1
Band 1

Individual Editorial

Maria Castelos has an excellent standing in the market as an active adviser on share sales and corporate restructurings. She is experienced in assisting clients in the energy industry.

Private Equity - Portugal

Band 1
Band 1

Individual Editorial

Maria Castelos stands out for her experience in infrastructure sector investments, having acted for funds on both the buy- and sell-side of high value deals.

Banking & Finance - Portugal

Band 2
Band 2

Individual Editorial

Maria Castelos holds expertise in corporate restructurings and real estate finance transactions as well as acquisition finance. She also has experience advising investors on the acquisition of NPLs from Portuguese banks.

Strengths

Provided by Chambers

  • Maria Castelos is an expert in this field. She is extremely competent and creative, which makes her stand out.

    ProjectsChambers European Guide
  • Maria Castelos is an exceptional lawyer.

    Private EquityChambers European Guide
  • She is involved in the biggest transactions in the country and her experience is highly notable.

    Private EquityChambers European Guide
  • Maria Castelos is an excellent lawyer.

    Banking & FinanceChambers European Guide

Ranked Individuals at CS'Associados (29)

Portugal

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