He is a specialist in in national and international taxation law and has a wide experience on the problems of international taxation as well as safeguarding taxpayers in tax disputes with the tax authorities at different levels of government.

He has handled the tax planning of different businesses and transactions, such as international financing operations and corporate acquisition and reorganization schemes. He has also represented clients in tax assessment claims by tax authorities, including the Appeals Chambers and the Argentine Supreme Court.

Alejandro is a member of the Argentine Association of Fiscal Studies, of the International Fiscal Association and the Board of the Bar Association of the City of Buenos Aires. He has also been a panelist and National Rapporteur for Argentina before the IFA.

Currently, he serves as professor of Tax Law in different courses of studies at renowned Argentine universities. He is also the author of various publications and regularly lectures on his field of work.