Attorney at law by the ‘Universidad Nacional Autónoma de México’ (UNAM), our leading partner has coursed post-graduate studies in civil and commercial law at ‘Escuela Libre de Derecho’, international law courses imparted by Duke University and the ‘Université Libre de Bruxelles’, aviation contracts law at IATA and LLM studies in Air and Space Law at Leiden University in the Netherlands. Mr. Sierra has been a professor of contracts law at UNAM and after being in-house counsel for Mexicana Airlines, he has been in private practice for over twenty years advising lessors and financiers in transactional work related to the leasing and finance of aircraft and the enforcement of their rights during default, liquidation and bankruptcy proceedings. Mr. Sierra has written several articles related to aircraft finance and leasing, the Cape Town Convention and Protocol, repossession of aircraft, aviation law and Mexican commercial law.

He is currently Chair of the legal advisory panel of the Aviation Working Group, officer of the Aviation Committee of the International Bar Association and member of the international advisory committee of the Leiden Foundation of Air and Space Law. Mr. Sierra is also an instructor for the International Air Transport Association (IATA) on aircraft leasing and acquisitions and has been named by Chambers as the most prominent aviation attorney in Mexico for the past four years.