Dower Law Firm

The firm: Dower is a Portuguese multidisciplinary firm that combines first-class legal advice with a broader commitment to the businesses, people and environment it serves. Founded by Eduardo Castro Marques, Miguel Cunha Machado, Nuno Sá Costa and Pedro Neves de Sousa, and led by Managing Partner Eduardo Castro Marques, the firm brings together more than 50 professionals across offices in Lisbon, Porto, Aveiro and Funchal.

Pairing specialised legal counsel with a dedicated Business Services practice, Dower offers clients an integrated platform that reaches beyond the traditional scope of legal advice. Each mandate is handled by dedicated teams who combine technical rigour with a genuine understanding of their clients' commercial realities.

Earth is our Law: sustainability as a standard

Sustainability is part of Dower's identity, expressed in its guiding principle: Earth is our Law. For the firm, this is an operating standard rather than a statement of intent. Dower's premises are BREEAM-certified, its operations run entirely on renewable electricity, and a dedicated ESG Working Group — overseen by the firm's Chief Sustainability Officer — ensures that environmental and social responsibility inform both how the firm works and the advice it gives.

Innovation embedded in practice

Dower has built technology and artificial intelligence into the way it works, deploying specialised legal-AI and productivity tools that enhance the speed, consistency and depth of the service delivered to clients. This allows the firm's teams to focus on high-value, strategic work while maintaining the rigour and quality that underpin its advice.

Recognition

Dower's work has been recognised by the international legal community, including distinctions at the Iberian Lawyer Awards in the Trademarks and Food categories, and the Team of the Year – Tax award at the 40 Under Forty Awards 2026.

Main areas of practice

Business Services · Civil · Corporate · Credit Recovery · Criminal and Regulatory Offenses · Environment and Energy · Family and Succession · Immigration and Nationality · Intellectual Property · Labour · Litigation and Arbitration · Privacy and Compliance · Public · Real Estate · Tax