M&O is one of the few Spanish law firms specialized in transactions with an international component.
We advise you in complex transactions involving international aspects.


From listed companies to Startups, Funds or Family Offices,
all of them with an international component


Let us know your plans,
together we make them happen


We are specialized in resolving
complex transactions with international aspects


Join us


We are specialized in resolving
complex transactions with international aspects.

Family Office


We help some of the largest European family offices with their investments, and we help structure them after a liquidity event

International Expansion


We provide commercial and tax advice on the international expansion of Spanish companies

Investments in Spain


We help in the acquisition of both business and real estate for funds or foreign investors in Spain

Investment Rounds
and M&A


We participate in numerous processes of raising capital for startups. From seed rounds to Series B, C, supporting the founders in the whole process, until a later exit

Real Estate


We help foreign funds and Family Offices in the acquisition of real estate assets both in Spain and abroad



We are one of the few Spanish firms with in-depth knowledge of cryptocurrencies, tokenization, blockchain and its commercial and tax aspects

If you want to see how we can help you in your investment or international expansion projects, contact us.


Join us. Available positions.

If you want to be part of a dynamic,
innovative team with an international vocation.

If you want to participate in complex transactions, with a large international component.
If you want to work with the best professionals and the best clients.