Josemaría has provided legal advice to domestic and foreign clients for over 35 years. His experience includes multilateral transactions; Cross Border transactions; Mergers and Acquisitions; Market Control; Project Finance and Management; Public Procurement; Commercial Law; Mediation, Arbitration and Litigation; Corporate, Corporate and Trust Law; International Trade; Franchising, Licensing and Distribution in the following sectors: Insurance, Banking, Finance, Trust, Commercial, Corporate, Agency, Civil Law, Administrative Law, Communications, Maritime, Energy, Agrochemical Industry; Beverage Industry; Agribusiness; Food/Fish Industry.

Josemaría supports pro-bono causes. He has assisted nationals and foreigners in contentious matters; he obtained the first certificate of protection in Ecuador and the first patent granted to a Luthier in the country, granted to Luthier Hugo Chiliquinga. He has advised the Zaldumbide-Rosales Foundation, which promotes musicians worldwide, as well as The Global Foodbanking Network.