The Firm

Our Partnership Culture is what truly sets us apart.

Partnership with our clients, with society, and within our firm itself.

At CS'Associados we embrace our clients' goals and forge relationships so that we can achieve them together.

We are strongly committed to providing ethically demanding and responsible services, contributing positively to the creation of long-term value towards a sustainable economy and a balanced society.

First and foremost, the partnership is built on the foundation of the firm's individuals. We are very aware that the best results are achieved by galvanising talent and the horizontal organisation of equals. We are far more than the sum of our individual parts – we have built a law firm that functions as a single, seamless and talented team. At every level. In the profile of work that we do, in our core values, our working environment, and a sense of collective belonging and responsibility. All these factors have contributed to our high rate of talent retention. 

The Firm
  • 2022
    1 January 2022
    Mafalda Ferreira joins the firm as Partner, to head the Energy and Sustainability practice area
  • 2021
    1 January 2021
    André Salgado de Matos, a Public and Regulatory lawyer, becomes a Partner of the Firm
  • 2020
    1 December 2020
    Jorge Silva Martins joins the Firm as Counsel to head the Technology, Data and Digital Innovation practice area
    1 March 2020
    Rui Pinto Duarte joins the Firm as Counsel, reinforcing the Litigation and Arbitration and Commercial and Corporate practice areas

    The Firm integrates as Counsel, Rui Pinto Duarte, lawyer with extensive experience and enormous prestige in litigation arbitration.

    Having intervened in more than 100 arbitration proceedings, primarily as arbitrator, Rui Pinto Duarte joins the Firm in order to consolidate and complement the Litigation and Arbitration team, in addition to his involvement in matters associated with other practice areas.

    Currently a full professor at the Faculty of Law of Universidade Católica Portuguesa, Rui Pinto Duarte is the author of several works and of more than 50 articles pertaining to several legal topics, namely in the areas of Contract Law, Corporate Law, Property Law and Banking Law.

  • 2019
    1 September 2019
    Margarida Rosado da Fonseca joins the Firm as Counsel to head the European and Competition Law practice

    Margarida Rosado da Fonseca joins CS Associados as Counsel to head the European Union and Competition area with the aim of its consolidation, given the importance of this practice for the Clients of CS Associados.

    Margarida Rosado da Fonseca has a recognized professional career in this area both as a lawyer and having been Director of the Merger Department of the Portuguese Competition Authority and specialized jurist in ESAME (the Government’s technical team in charge of the coordination and implementation of the international assistance program of the IMF/EC/ECB). In the context of ESAME, she has participated in the implementation of the measures concerning the transposition of European Union law in general and also in the revision of the Competition law framework and sectoral regulators one (entre 2011 e 2013).

    She has the title of Specialized Lawyer in EU and Competition Law since 2007, atributted by the Bar Association and is author of of several articles on EU and Competition law. Currently, she is Secretary-General of CAPDC - Association of Portuguese Competition Lawyers ("Círculo dos Advogados Portugueses de Direito da Concorrência") and of APDE - Portuguese Association of European Law (Associação Portuguesa de Direito Europeu). She has integrated juries of oral exams for the course of preparation of Magistrates for the judicial courts.

  • 2018
    1 July 2018
    David Oliveira Festas and Pedro Duro are appointed Partners

    David Oliveira Festas, so far Senior Associate in Corporate, Mergers and Acquisitions and Capital Markets, has been involved in several takeovers, mergers and acquisitions, and has been consulted by several entities in corporate matters, capital market and corporate governance. David Oliveira Festas has been a Professor at the Faculty of Law University of Lisbon since 2001, where he obtained the Master's and Doctor's degrees in Law.

    Pedro Duro, so far of Counsel, joined the firm in January 2015 to create the ​​Criminal, Misdemeanour and Compliance practice area. He worked also in the Portuguese Securities Market Commission, he has been the Deputy Director of the Ministry of Justice Legal Policy and Planning Office and Inspector-General for the Agriculture, Sea, Environment and Spatial Planning.

    CS'Associados now has 13 members.

  • 2016
    1 January 2016
    João Gonçalo Galvão, a Commercial and Company Law, M&A and Private Equity lawyer, becomes a Partner of the Firm

    João Gonçalo Galvão, previously Senior Associate of the Commercial and Company Law, M&A and Private Equity practice areas, becomes a Partner of the firm on January 1st, 2016.

    Graduate of the Faculty of Law of the University of Coimbra and holding a Masters Degree in Law and Management from the Faculty of Economics and Faculty of Law of Nova University, João Gonçalo Galvão started his career as a lawyer at PLMJ - A. M. Pereira, Sáragga Leal, Oliveira Martins, Júdice & Associados, having joined Campos Ferreira, Sá Carneiro & Associados at the time of its incorporation. 

  • 2015
    1 January 2015
    Pedro Duro joins our Firm as Counsel to head our Criminal, Misdemeanour and Compliance practice.
  • 2014
    1 November 2014
    Pedro Furtado Martins joins the Firm as head of Labour practice.
  • 2013
    1 April 2013
    André Salgado de Matos joins our Firm as Counsel to head the Public Law practice

    To guarantee the maximum specialization and high level of service in those areas which are considered key to its Clients, CS Associados integrates André Salgado de Matos as Counsel, to launch the Public Law practice area.

    André Salgado de Matos has a recognized academic career which has been strengthen by the publishing of several books and articles.

    He is currently Assistant Professor at the Lisbon Law School, Catholic University being in the final stages of preparation of PhD.

    Alongside, André Salgado de Matos has been developing a significant activity as a lawyer and legal adviser of public and private entities regarding public law and legislative process.



    1 January 2013
    João Maria Pimentel becomes a member of the Firm

    The head of Litigation/Arbitration and Restructuring /Insolvency, so far of counsel of the firm, becomes a Partner.

    João Maria Pimentel joined the Firm in February, 2011 from Uría Menéndez - Proença de Carvalho where he was Managing Associate.

    With this change CS Associados counts nine partners - Fernando Campos Ferreira, Francisco Sá Carneiro, Maria Castelos, Martim Morgado, Duarte Brito de Goes, Bernardo Abreu Mota, António Rocha Mendes, António Rocha Alves and João Maria Pimentel.

  • 2012
    1 January 2012
    Antonio Rocha Alves becomes a member of the Firm

    António Rocha Alves, so far Senior Associate of the Firm, becomes a Partner.

    António is in the Firm since its integration and has been a main element in Banking & Finance, Capital Markets and Insurance practices.

    In 1998, finished his law degree in the Law School, University of Lisbon, having been invited - still during his studies - to start giving classes, which he did until 2011.

    He started his lawyer career at PLMJ - A. M. Pereira, Sáragga Leal, Oliveira Martins, Júdice & Associados and holds a master degree since 2005, with a thesis on the Civil Liability for the Prospectus.

    He works with many of the major Portuguese Banks and financial institutions, and with several foreign banks acting in Portugal and in Portuguese speaking countries. Consequently, our Banking and Finance practice is strengthen, and answers to the increasing requests of the legal market, namely in the regulatory and banking sector.

  • 2011
    5 May 2011
    CS'Associados is recognised with the prestigious "Client Service Award 2011" by Chambers & Partners, for the legal services provided in its first year of activity

    Campos Ferreira, Sá Carneiro & Associados is awarded with the "Client Service Law Firm of the Year 2011" for Portugal, at the ceremony for the "Chambers Europe Awards for Excellence" held on May 5, in Amsterdam. 

    This award is granted by the international directory Chambers & Partners, after an intensive and independent research within Clients and lawyers, and reflects notable achievements over the past 12 months including outstanding work, impressive strategic growth and excellence in Client service.

    18 April 2011
    "A partnership of equals" in Iberian Lawyer

    The magazine Iberian Lawyer makes a portrait of CS'Associados, a year and a half after its incorporation.

    The reasons that motivated the creation of the new Firm, the process of integration of the two teams, the establishment of a professional relationship of proximity with its Clients, the low leverage partner/lawyer, the homogeneity between partners and their permanent involvement throughout the whole process of legal advice are just a few points covered in the article that gives a complete overview of the young Firm.

    1 February 2011
    João Maria Pimentel joins the Firm to develop two new practices

    To ensure the highest quality and expertise in the practices considered key for its Clients, CS Associados integrates João Maria Pimentel as senior of counsel, to develop the areas of Litigation/Arbitration and Restructuring /Insolvency.

    João Maria Pimentel, former Managing Associate at Uría Menéndez - Proença de Carvalho, has a Law degree by the Faculty of Law, Catholic University of Porto. After 5 years of practicing law in Macau, João returns to Portugal and integrates the firm Vasconcelos, F. Sá Carneiro, Fontes & Associados which merged subsequently with Uría Menéndez.

    14 January 2011
    High Speed Train is Deal of the Year in Project Finance

    The project financing of the Stretch Poceirão-Caia for the High Speed Train (TGV) is awarded the "European High Speed Rail Deal of the Year 2010" granted by the specialized magazine "Euromoney Project Finance Magazine".

    CS Associados is one of the law firms involved in this transaction providing legal assistance to the banking syndicate in all that relates to Finance Law.

    1 January 2011
    Antonio Rocha Mendes becomes a member of the Firm

    The head of tax practice, so far of counsel of the Firm, becomes a Partner. With this change CS'Associados has now seven members - Fernando Campos Ferreira, Francisco Sá Carneiro, Maria Castelos, Martim Morgado, Duarte Brito de Goes, Bernardo Abreu Mota, and now, António Rocha Mendes.

  • 2010
    1 June 2010
    Avenida da Liberdade, 249

    After the first six months in its temporary office at Avenida Fontes Pereira de Melo, CS Associados opens its new premises on June 1, 2010 on the 8th floor of Avenida da Liberdade, 249.

    16 January 2010
    António Rocha Mendes joins the Firm as of Counsel to head the Tax practice

    To ensure a continuous level of excellence and expertise in all practices, CS'Associados strengthens its capabilities in Tax, by integrating António Rocha Mendes, former partner at Cuatrecasas Gonçalves Pereira, who becomes a member of the Firm as of Counsel.

    Post-graduate degree in Taxation Institute of Management and an LL.M. in International Tax from Boston University School of Law, Antonio Rocha Mendes takes the responsibility for creating the area of tax law.

  • 2009
    30 December 2009
    Incorporation of the Firm

    Campos Ferreira, Sá Carneiro & Associates is formally incorporated on December 30, 2009.

    This day represents the beginning of a project that set as a priority the establishment of a professional relationship of proximity with its Clients, based on the quality of the legal services provided and the direct and permanent involvement of its partners throughout the legal counseling process.

    The founding partners of the new Firm are Fernando Campos Ferreira, Francisco Sa Carneiro, Maria Castelos, Martin Morgado, Duarte Brito de Goes and Bernardo Abreu Mota.

    16 November 2009
    Day 1

    On November 16th, 2009 teams from two of the most prestigious law Firms in Iberia come together at their new office, still nameless at the time, in the temporary premises of Avenida Fontes Pereira de Melo, in Lisbon.

    29 people are at the start of this new law Firm - six partners, 15 lawyers and 8 support professionals.

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