The Legal 500 – Leading Firm in 2022’s Rankings

News 12/04/2022

We are proud to announce that Caiado Guerreiro has again been ranked in 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 for the 2022’s directory and some client feedback the research team received about Caiado Guerreiro’s work from the past year.


Jointly led by João Caiado Guerreiro and Ricardo Rodrigues Lopes, Caiado Guerreiro’s corporate and M&A team handles a mix of acquisitions and disposals, mergers and joint ventures in a range of sectors, including chemicals, energy, telecoms, media and construction. Additionally, its practitioners provide assistance to core clients in an array of corporate law, regulatory and compliance matters. Co-head Rodrigues Lopes has noteworthy experience in cross-border transactions, corporate restructuring and contractual issues.

Client quotes

‘Proactivity and courtesy, high level of skills.’

‘Knowledgeable, responsive, super efficient and proactive. Exactly the overseas counsel you want.’

‘Ricardo Rodrigues Lopes – always on top of the issues and deadlines. Inspires absolute confidence with a clear and concise, to the point style.’


Caiado Guerreiro is skilled at assisting across the gamut of matters pertaining to the generation, transportation and transmission of electricity, as well as oil and gas. Typical instructions range from advising on compliance and regulatory developments to handling M&A and financing deals. Jorge Ribeiro Mendonça – who oversees the energy and natural resources practice – is active in renewable projects and transactions, siting and permitting issues.


Caiado Guerreiro fields ‘a reliable and qualified team’ specialised in IP law, which excels in patent enforcement and defence within the pharmaceutical sector through litigation and arbitration. Furthermore, the team is well positioned to assist with trade mark prosecution and related administrative proceedings, as well as plant variety rights. Disputes involving pharmaceutical patents are a core focus for Ricardo Costa Macedo, who leads the department and is recommended for his ‘commitment to clients’ requests and needs’.

Client quotes

‘Caiado Guerreiro is a law firm that is unique for the value of its lawyers and the work philosophy it practises: always centered on the Client’s perspective and on client satisfaction.’

‘It stood out for its excellent quality of the legal service provided to the fees charged. We appreciate the work provided by the firm, always performed by a reliable and qualified team. Caiado Guerreiro & Associados was extremely important to centralise and develop the client’s demands, accomplishing promptly and with excellence our requests.’

‘Ricardo Costa Macedo is an exceptional lawyer: always available and very knowledgeable, he shows great interest and attention to Clients’ matters.’


Praised by clients for providing ‘outside the box’ and ‘innovative solutions’ in the context of dispute resolution, Caiado Guerreiro handles a range of corporate and commercial litigation, as well as arbitration proceedings. Assisting clients with out-of-court contentious matters is another core area of activity for the department, which is under the joint leadership of João Caiado Guerreiro and Sandra Ferreira Dias. Both have extensive experience in judicial and arbitral cases. Sandra Jesus is also noted; she is a point of contact for several domestic and international clients involved in litigation and arbitration.

Client quotes

‘ They think outside the box and often with innovative solutions.’


Caiado Guerreiro’s employment and labour law team has been involved in several major restructuring processes in the market, with increasingly important work such as contract flexibility, collective dismissals procedures, and lay off procedures also featuring in its recent workload. In addition, litigation before the labour courts is also in the purview of the team. Labour disputes specialist Ricardo Rodrigues Lopes co-leads alongside Jorge Ribeiro Mendonça, who specialises in employment-related corporate matters.

Client quotes

‘Ricardo Rodrigues Lopes is recommended.’


Caiado Guerreiro acts for a wide range of clients, including companies, charities, real estate investment funds and high-net-worth individuals. The team is particularly noted for the work it undertakes on behalf of private clients, and for its structuring advice in the context of business transactions, foreign investments and restructurings. Tiago Caiado Guerreiro, who is seasoned in transactional tax, double taxation treaties and transfer pricing, jointly oversees the practice with Ana Castro Gonçalves, who is often engaged in tax planning matters.

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.’

The content of this information does not constitute any specific legal advice; the latter can only be given when faced with a specific case. Please contact us for any further clarification or information deemed necessary in what concerns the application of the law.