Practice Areas

Dispute Resolution


We support our clients in complex disputes that are critical to their businesses and reputations, and we handle the most sophisticated and sensitive domestic and international cases.

Our dispute resolution practice has a highly specialised team that handles all aspects of litigation, arbitration and other ADR methods. The team deals with disputes of the most varied nature, representing clients from a wide range of sectors.

Our multidisciplinary approach allows us to have a team of specialists that combines knowledge in areas such as competition, banking, finance and capital markets, with solid experience in litigation and arbitration.

We act in the largest banking disputes, involving mis-selling of derivatives and other financial instruments, or responsibility for issuing prospectuses for public offers of securities. We also handle the most significant corporate disputes, often implementing strategies for step-in and for reorganisation of the shareholder structure.

Our team has represented clients in defending the most important class actions, including actions involving liability of directors of listed companies and manufacturers’ civil liability. Furthermore, we have extensive experience in competition and regulatory proceedings before the Court of Regulation, Supervision and Competition.

We also specialise in complex commercial disputes, acting in cross-border matters arising from breach of contract, professional malpractice, business torts, insurance and reinsurance matters, distribution and agency agreements as well as disputes involving maritime law. Our team represents several car manufacturers in large-scale domestic and cross-border disputes. We also have strong experience in pharmaceutical sector litigation, at all stages of the economic process, and in disputes arising from contracts for public and private works.

In restructuring and insolvency, we act in preventive corporate rehabilitation proceedings (PER and SIREVE) and in insolvency and business reorganisations. Our experience includes preparing and negotiating recovery and liquidation plans, and then dealing with their implementation. Our team is called on regularly to act in cross-border insolvency cases and to advise large companies or international financial institutions on defining and implementing business strategies in corporate recovery or insolvency scenarios.

We represent our clients in commercial, construction and investment arbitrations under the rules of arbitration of the leading international arbitration centres. Our team has great experience in dealing with arbitrations in Portugal and abroad, with a special focus on the Lusophone countries, conducted in several languages and with diverse applicable laws. It is common for us to put together specific, multidisciplinary and even multi-location teams, depending on the nature of the dispute and the needs of our clients.

Our team has worked on the most multifaceted and high-profile cases in Portugal, acting in all areas of criminal and administrative offence law, providing support to companies, their directors and staff. With a strong focus on prevention, we provide customised compliance services helping companies to detect potential contingencies and provide corrective advice.




They provide outstanding work, attitude, accuracy, confidence and they have great offices. We’re very pleased with PLMJ’s work. Whenever we give them an assignment we trust they will do their very best to defend us in strict legal terms, but above all with creativeness and out-of-the-box solutions. It’s difficult to improve when you are above average.
IFLR 1000
2021 Insolvency & Restructuring Recommended Tier 1
Best Lawyers
2021 Insolvency and Reorganization Law Lawyer of the year
2019 Insolvency and Reorganization Law Law Firm of the Year

"Filipa Cotta of PLMJ is celebrating both her firm’s 2019 “Law Firm of the Year” award for Insolvency and Reorganization Law in Portugal, and its recent 50th anniversary as a major player in the Portuguese market. Cotta speaks with Best Lawyers CEO Phillip Greer about changes in her insolvency practice, and what the firm has planned for the future."

2018 Arbitration Lawyer of the year
2018 Recognised Lawyers
2018 Litigations Best Portuguese Lawyer of the year
2017 Other Recommended Lawyer Other Recommended Lawyer
2016 Litigation Law Firm of the Year
Chambers Europe
2020 Restructuring & Insolvency Recommended Tier 1

"Clients highlight that "the lawyers are technically very competent and work in big teams, which allows for specialised knowledge in insolvency and corporate litigation, as well as fast response capabilities."

2020 Arbitration Recommended Tier 1

"PLMJ's responsiveness is outstanding and the firm is able to adapt the team structure in a flexible manner."

2019 Litigation Recommended Tier 1

"Clients recommend the department for its full coverage of dispute resolution, reporting it to be a "multidisciplinary and dedicated team.""

2019 Arbitration Recommended Tier 1

"Clients praise the provision of clearly structured and well-founded advice, even at short notice"

2019 Restructuring & Insolvency Recommended Tier 1

"Top-tier department boasting valuable experience in multi-jurisdictional restructuring and insolvency cases."

2018 Litigation Recommended Tier 1

"Sources recommend the team for the high quality of service: a very reliable support, reactive and present when anticipating each situation."

2017 Litigation Recommended Tier 1

"Sources recommend the team for the high quality of service: a very reliable support, reactive and present when anticipating each situation."

Chambers Global
2020 Litigation Recommended Tier 1
2020 Arbitration Recommended Tier 1
2019 Litigation Recommended Tier 1
2018 Litigation Recommended Tier 1
2017 Litigation Recommended Tier 1
Leaders League
2021 Restructuring & Insolvency Leading
2020 Arbitration Leading
2020 Civil and Commercial Litigation Leading
2020 Compliance & White Collar Crime Excellent
The Legal 500
2020 Arbitration Recommended Tier 1
2020 Litigation and Dispute Resolution Recommended Tier 1
2019 Litigation and Dispute Resolution Recommended Tier 1
2018 Litigation and Dispute Resolution Recommended Tier 1
2017 Litigation and Dispute Resolution Recommended Tier 1
Who's Who Legal
2019 Arbitration Thought Leaders

"WWL Thought Leaders - Arbitration 2019 brings together the insight, expertise and wisdom of some of the world’s foremost arbitrators, counsel and expert witnesses in a single book, featuring Q&As with practitioners with millennia of years of combined experience in arbitration between them. The featured individuals obtained the biggest number of nominations from peers, corporate counsel and other market sources in our most recent research cycle."

2019 Arbitration Future Leaders

"WWL Arbitration - Future Leaders showcases partners and non-partners aged 45 or under who are considered to be the future leaders of the international arbitration community.

2019 Arbitration Global Leaders

"WWL and GAR's research identifies the world's best arbitration lawyers, who come highly recommended for their expertise in resolving complex international disputes."

2019 Restructuring & Insolvency Global Leaders
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