Legal Advisor in the Advisory Opinion concerning the Obligations of States in respect of climate change

Counsel of the Bolivarian Republic of Venezuela in the case concerning Arbitral Award of 3 October 1899 (Guyana v. Venezuela)

Legal Advisor of the Pacific Islands Students Fighting Climate Change (PISFCC)

​Members of the Advisory Board of the World’s Youth for Climate Justice

Legal Advisor of the Plurinational State of Bolivia in the case concerning the Dispute over the Status and Use of the Waters of the Silala (Chile v.Bolivia)​

Legal Advisor of the Republic of Nicaragua in the Advisory Opinion concerning Legal consequences of the separation of the Chagos Archipelago from Mauritius in 1965 (Request for Advisory Opinion) 

Legal Advisor of the Republic of Nicaragua in the case concerning the Question of the Delimitation of the Continental Shelf between Nicaragua and Colombia beyond 200 nautical miles from the Nicaraguan Coast (Nicaragua v. Colombia) 

Legal Advisor of the Republic of Nicaragua in the case concerning the Alleged Violations of Sovereign Rights and Maritime Spaces in the Caribbean Sea (Nicaragua v. Colombia)

Legal Advisor of the Republic of Nicaragua in the case concerning Land Boundary in the Northern Part of Isla Portillos (Costa Rica v. Nicaragua) 

Legal Advisor of the Republic of Nicaragua in the case concerning Maritime Delimitation in the Caribbean Sea and the Pacific Ocean (Costa Rica v. Nicaragua)

Legal Advisor of the Republic of Nicaragua in the case concerning Certain Activities carried out by Nicaragua in the Border Area (Costa Rica v. Nicaragua)

Legal Advisor of the Republic of Nicaragua in the case concerning the Construction of a Road in Costa Rica along the San Juan River (Nicaragua v. Costa Rica)

Legal Advisor of the Republic of Nicaragua in the case concerning Territorial and Maritime Dispute (Nicaragua v. Colombia)