Featured News

Caiado Guerreiro recommended on Leaders League’s ranking

The Leaders League directory just published the 2022 rankings of recommended Portuguese Law Firms in several practice areas and we are once again proud to announce that Caiado Guerreiro has been recognized in some of the most important researched practice areas.

Our rankings at the time are as follows:


Portugal – Best Law Firms for Tax Law – 2022
Tiago Caiado Guerreiro & Ana Castro Gonçalves

Portugal – Best Law Firms for Restructuring & Insolvency – 2022
João Caiado Guerreiro

Portugal – Best Law Firms for M&A and Corporate Law – 2022
João Caiado Guerreiro & Joana Gomes dos Santos

Portugal – Best Law Firms for Banking & Finance – 2022
João Caiado Guerreiro

Portugal – Best Law Firms for IP Litigation – 2021
Ricardo Costa Macedo

Portugal – Best Law Firms for Technology – 2021
Ricardo Costa Macedo & Ricardo Rodrigues Lopes

Bankruptcy, Restructuring & Insolvency
João Caiado Guerreiro



Portugal – Best Law Firms 2021 – Civil & Commercial Litigation
João Caiado Guerreiro & Sandra Ferreira Dias

The extensive research occurred during several month, during which different law firms, legal directors, private equity funds, associations, financial institutions and industry experts gave their feedback about the market, thus contributing for a informed and accurate research results.

Leaders League is an international rating agency with a strong focus on the legal market whose team consists of 150 professionals based in several locations around the world. These are specialized in putting together rankings and market research, used by a wide range of corporations and executives as an up-to-date and essential guide for knowing international legal markets.

Caiado Guerreiro is very happy and proud for this recognition of such important business areas of the firm. Congratulations to the recognized partners and to all the teams whose merit and effort contributed in an essential way to these results!

Featured News

Caiado Guerreiro on Best Lawyers 2022

The results are in for 2022’s Best Lawyers recognized lawyers and Caiado Guerreiro is proud to share that four of our partners were distinguished for next year’s Portugal’s Awards guide.

The following recognitions were published:

  • Tiago Caiado Guerreiro, for Tax Law
  • Ricardo Costa Macedo, for Intellectual Property Law
  • Ricardo Rodrigues Lopes, for Labor and Employment Law
  • Ana Castro Gonçalves, for Tax Law

Best Lawyers is one of the most respected guides for lawyers worldwide and each year it highlights the professional excellence of those who work in the legal sector.

The lawyers that are nominated are then voted by currently recognized Best Lawyers working in the same practice area and same geographic region, thus guaranteeing accurate and real feedback by their peers.

Caiado Guerreiro is proud of these results and we congratulate these exceptional lawyers and their respective teams, whose work and efforts made it possible to achieve these results.


Caiado Guerreiro’s partner is a Top 25 Global Migration Attorney

Uglobal Immigration Magazine’s Top 25 has just been released and we at Caiado Guerreiro are proud to share that our partner Sara Sousa Rebolo has once again been recognized with as a Top Global Migration Attorney.

These annual awards recognize the leadership of the best in the industry in four categories, all connected to the immigration sector, such as agents, attorneys, developers, and immigration companies.
In a year market by the pandemic, these 25 leading professionals were considered by Uglobal to have reinvented their business strategies and adapt to the new reality while still securing a full assistance to their immigration clients, which is itself a trailblazing effort.

Sara, the leading partner of Caiado Guerreiro’s Immigration Law Department, has been working for over a decade in this area, leading her team in very successful immigration cases and foreign investment deals.

In the managing partner’s, João Caiado Guerreiro, own words “we’re very happy to see the acknowledgment that Sara had in her field and to see that the Investment Migration Professionals in Portugal are being recognized by their professionalism, along with the success and importance of the programs like Golden Visa for the Portuguese economy. This is the result of our team’s work at Caiado and a lot of dedication to each of our Clients.”

From worldwide applications, only 25 immigration professionals get to be recognized every year by Uglobal the largest global investment immigration magazine, thus making this achievement a very important and significant honour in this area.


Attendance of the Investment and Real Estate in Portugal Forum

Lawyers Anthony Meira and Diogo Silva Melo will be at the Forum of Investment and Real Estate in Portugal on next October the 1st. The event is organized by the Luso-French Chamber of Commerce and Industry and held at the Crown Plaza Vilamoura, in Algarve.

This Forum is intended for any professional, company manager, investor or individual interested in Portugal and will approach subjects such as preparing your expatriation and installation, creating your company and other opportunities and procedures.

Participation in the event is free but mandatory.

Get more information at the Luso-French Chamber of Commerce and Industry’s website.

Featured News

Caiado Guerreiro recognized by Corporate INTL’s Global Awards 2021

The prestigious publication Corporate INTL recognized Caiado Guerreiro for its work in its Global Awards 2021 edition.

The firm was distinguished in 18 practice areas:

  • M&A Law
  • Dispute Resolution
  • Tax Law
  • Employment Law
  • Life Sciences Law
  • Insolvency
  • Real Estate Law
  • Tax Litigation
  • IP Law
  • International Taxation
  • Insurance Law
  • Competition Law
  • IT Law
  • Administrative Law
  • Data Protection & Cyber-Security Law
  • Energy Law
  • Capital Markets
  • Project Finance Law

Caiado Guerreiro has been successively recognized by Corporate INTL over several years for providing its clients the highest quality legal services by the lawyers’ team who collaborate with the firm in their respective areas.

João Caiado Guerreiro says: “It is always great to get recognition for our work. Receiving these awards motivates us to keep providing our clients with better services and working towards their satisfaction.”.

Since 2005, Corporate INTL has been connected thousands of professionals in the business, financial and law areas, being one of the most used tools in the search of specialists in the law sector.

Featured News

Caiado Guerreiro signs agreement with Jingsh

On July 21, 2021, Caiado Guerreiro and Jingsh Law Firm, one of the largest law offices in China, signed a business cooperation agreement in an effort to build a solid bridge for the international exchange and collaboration of both sides. Jingsh has been building a double-track development model of “domestic + international” and as of today has 8,165 employees nationwide, with 51 offices in China and 13 overseas offices.

Portuguese lawyer Rosendo Guimarães da Costa, from Caiado Guerreiro, was representing the firm at this agreement signing.  Rosendo has been collaborating with Caiado Guerreiro for almost 10 years, integrating the Chinese Desk team, where he works as the firm’s Beijing based law expert. He travels frequently within the Asian continent (China, India, Vietname, Korea and Japan) to participate as a speaker at conferences, events, intervene and mediate panel discussions, meet partners, investors, and clients, provide legal advice and periodically publishing articles related to Asian markets. He was also a founding member of the Portuguese Club of Beijing in 2015, currently serving as Vice President of the Fiscal Council.

Rosendo highly recognized Jingsh international development model during the ceremony, before introducing the development scale, business areas, and other content of Caiado Guerreiro. He hopes that both sides can form a long-term stable cooperative relationship and jointly explore the overseas market and the unique international development path, carrying out broader and deeper business exchanges and cooperation.

At the signing ceremony, held at Jingsh Lawyers Building headquarters, was were also present Liu Rentang (Manager of Jingsh&Anwenna Law Firm), Deng Jun (Director of the Jingsh’s Cultural Brand Department), Gao Hexin (Director of International Commercial Contracts Legal Affairs Department at Jingsh Tangshan Office), Lu Dingliang (Director of the Digital Economy Legal Affairs Department) and Tang Yuanyang (Director of the Entrepreneurs’ Rights & Interests Protection Department at Jingsh Beijing Headquarters).

“It is significant for Jingsh to expand the legal service market in China and Portugal.” – Deng Jun noted – “Jingsh will fulfill the function of Jingsh international system, which was centered on Jingsh Shanghai International Headquarters, to promote the law practice around the world.”

“Both sides should not restrict the business cooperation but try to realize the cross-cooperation in multiple fields based on innovative development mode, establishing a sound business cooperation system to adapt to the ever-changing international market environment.” Lu Dingliang suggested.

Gao Hexin and Tang Yuanyang hope that the two firms can cooperate closely to expand business cooperation channels and explore potential cooperation opportunities.


French Desk talks about Investment in Portugal at CCILF’s Webinar

Partner Tatiana Cardoso and lawyer Anthony Meira have been invited to represent Caiado Guerreiro’s French Desk in a webinar about Investment in Portugal organized by the Luso-French Chamber of Commerce and Industry.

The event will be held online on June 22, starting at 9:30 and ending at 12h (France time). The registration is free but mandatory.

Join the webinar where you will know more about Portugal and its advantages for individuals and companies and don’t miss the Q&A at the end.

More information and registration here: LINK


Caiado Guerreiro distinguished by The Trademark Lawyer

Caiado Guerreiro has been ranked within the top 10 Trademark firms in Portugal in The Trademark Lawyer Magazine in its 2021 Rankings.

As with previous editions of The Trademark Lawyer Law Firm Rankings, over the past 9 months, The Trademark Lawyer Magazine editorial team & associates have been carrying out extensive research to identify the leading Trademark Law firms and IP Practices across various European jurisdictions.

The firm has been successful in achieving a position in the top 10 in Portugal due to factors such as expertise, positive peer reviews, market profile, ranking position in other industry rankings and feedback from The Trademark Lawyer readers, clients and connections around the world.

The Trademark Lawyer Magazine is a well-established, trusted and recognizable brand within the global IP community. The Trademark Lawyer is a key media partner for many IP associations and conference providers meaning that we have a vast readership of high level corporate counsel, brand owners and trademark attorneys.

Featured News

The Legal 500 – Leading Firm in 2021’s Rankings

We are proud to announce that Caiado Guerreiro has again been ranked in 2021’s The Legal 500 annual ranking for Law Firms.

The Legal 500 is an international directory that each year presents its research on law firms based on client feedback and extensive independent research in the market.

Read below our results and client feedback regarding last year’s work.


Caiado Guerreiro offers legal support to clients from a range of sectors, including transport, telecoms, energy and construction, in relation to their inbound and outbound investments. The team is equipped to handle acquisitions, sales, mergers and joint ventures, and also advises on efficient tax structures. In addition to transactional work, the team provides daily assistance to clients in corporate, commercial, regulatory and compliance issues. João Caiado Guerreiro jointly leads the practice with Ricardo Rodrigues Lopes, who is proficient in corporate restructuring and M&A transactions.

Client quotes

‘The team understands clients’ business and solves problems efficiently.’
‘Caiado Guerreiro offers excellent quality services that distinguishes it in the market.’

‘Ricardo Lopes has an admirable set of qualities, including competence, comprehensive knowledge, effectiveness, availability, flexibility, and a collaborative posture. The availability of the founding partner, João Caiado Guerreiro, to give his opinion and monitor some critical issues, contributing expertise and experience, is a great asset.’

‘Quick response, great client service, permanent availability. Ricardo Lopes is recommended.’

‘You always feel like you are in safe hands and that they are on top of everything.’
‘Ricardo Rodrigues Lopes is super responsive, very bright, and pragmatic when he needs to be. I really can’t say enough good things about Ricardo.’


Caiado Guerreiro undertakes transactional work involving the oil and gas, electricity and mining sectors, but is particularly active advising on regulatory matters, administrative proceedings and compliance issues. Department head Jorge Ribeiro Mendonça regularly assists with project development and transactions in the renewables space, namely those pertaining to solar and wind power technology.

Client quotes

‘The technical level of their professionals stands out in the sector. They provide accurate legal advice to international clients on complex legal issues. Clarity, accuracy, and promptness of response are some of the strengths of the team.’

‘Jorge Ribeiro Mendoça provides solid legal advice with accurate and practical solutions. Accuracy, availability, and legal advice for international clients are some of his strengths.’

‘Caiado Guerreiro aims to provide a personalised service. Lawyers have extensive experience and deep knowledge in matters related to energy transactions, more specifically, in the renewables sector.’

‘Jorge Ribeiro Mendonça is an excellent lawyer and negotiator. He is always exploring different perspectives aiming to find the solution in the interest of the client. Jorge is also fluent in English, which helps a lot.’


Caiado Guerreiro has a strong background in patent enforcement and litigation, acting for key players in the pharmaceutical sector. The team, which is adept at assisting with the protection across the full range of IP rights, stands out in trade mark prosecution and administrative proceedings, unfair competition and plant variety right matters. The department is under the leadership of Ricardo Costa Macedo, who is noted for his experience in representing pharmaceutical companies in contentious matters before arbitration and judicial courts.

Client quotes

‘The firm gives practical, no-nonsense advice; quickly grasps the instructions and work with us to implement (and refine as necessary) the strategy.’

‘Ricardo Costa Macedo is very experienced and has sound judgement.’

‘All the support provided in matters pertaining to trade mark registration was outstanding.’

‘Ricardo Costa Macedo is the main point of contact for all IP matters. He stands out for his attention to detail, close monitoring of issues and focus on the client’s interests. We would also like to highlight his availability as well as his technical knowledge of issues related to intellectual property: both in terms of trademarks as well as the protection of business secrets.’

‘Prompt answers, professional treatment of clients, and permanent availability.’

‘We received clearly drafted documentation and our matters were handled promptly and efficiently.’


Caiado Guerreiro is adept at assisting with disputes in Portugal and abroad (with a special emphasis on Portuguese-speaking countries). Litigation, arbitration and out-of-court settlements are all notable areas of practice. Clients have access to an interface platform (VICKI) and a CRM software made available by the firm; these tools are particularly useful in mass litigation since they allow clients to be kept up-to-date with the latest developments in judicial proceedings. The litigation and arbitration team is led by Sandra Ferreira Dias and João Caiado Guerreiro, who specialise in civil and commercial disputes.

Client quotes

‘The team studies the cases in great detail. Sandra Jesus is very attentive.’


Caiado Guerreiro’s work in restructuring and insolvency is led by João Caiado Guerreiro and Sandra Ferreira Dias, with strength in contentious matters and cross-border instructions. Real estate, media and finance are all sectors frequently covered by the team.


Caiado Guerreiro’s employment team has been involved in major restructuring processes taking place in the Portuguese market, demonstrating significant experience in collective dismissals and lay-off procedures. The department has recently been particularly active representing companies in the termination of employment contracts in respect of directors and senior employees. Ricardo Rodrigues Lopes, whose specialisms include labour disputes, jointly leads the practice with Jorge Ribeiro Mendonça, who stands out for his transactional experience.

Client quotes
‘Immediate availability to resolve any legal issue. Matters have always been dealt with effectively and very professionally.’

‘Total availability to answer questions and committed to always find the best solutions for the client.’

‘Competence, availability and speed.’

‘Ricardo Rodrigues Lopes is a great lawyer.’


Caiado Guerreiro provides a range of tax services, working on recent matters for a number of HNWIs as well as companies in the real estate sector. Tax structuring advice and litigation are both commonly handled by practice heads Tiago Caiado Guerreiro and Ana Castro Gonçalves and their team. Tânia Pinheiro and Tatiana Cardoso head the German and French desks, respectively.

Client quotes
‘In-depth knowledge of tax matters.’

‘I was attended to promptly, quickly and impeccably! The availability was surprisingly remarkable at all levels, even on non-working days of the week, which surprised me immensely and we established a close relationship very quickly.’


Ricardo Rodrigues Lopes leads work in the TMT industry for Caiado Guerreiro, which advises its domestic and international clients on a range of matters, including regulation of electronic communications, acquisition and licensing of software, e-commerce, data protection and IP matters.



“Global Patent Litigation”: Ricardo Costa Macedo and Diana Mâncio da Costa are the authors of the Portuguese Chapter

Ricardo Costa Macedo, partner in charge of the Intellectual Property department, and Diana Mâncio da Costa, associate, both from Caiado Guerreiro, Sociedade de Advogados, signed the chapter dedicated to Portugal of the reputed “Global Patent Litigation: Strategy and Practice” by Wolters Kluwer.

Wolters Kluwer’s “Global Patent Litigation: Strategy and Practice” is a publication aimed at attorneys, patent agents and legal advisors who face international patent litigation. This publication is divided into different country reports, which provide a broad, general description of patent litigation practice in a specific jurisdiction. The description of available conservatory measures, common procedures, and injunctive relief in the major countries of the world is of great value.

Wolters Kluwer’s “Global Patent Litigation: Strategy and Practice” aims to address the growing need for quality information on the strategy and practical aspects of patent litigation in the world’s major jurisdictions.

This publication begins with a description of how strategy is formulated in international patent litigation, including the main provisions of the European Patent Convention and the European Patent Office.

This is followed by chapters written by experienced patent litigators on the law and practice in their respective jurisdictions. Each chapter describes how a patent owner can enforce the patent, highlighting potential pitfalls and solutions and thus enabling an informed decision to be made about where to litigate.

Further on, summary tables provide a quick overview of proceedings in a specific jurisdiction, along with an estimate of likely duration and costs.

Wolters Kluwer is a world leader in production, editing, publishing and information services.