They also owned the Manuelita sugar mill and the Compañía Azucarera Atlántica del Golfo, which was listed on the New York Stock Exchange.

This circumstance has led to the questioning of several plans and building certifications she reportedly signed in the capacity of "facultative director" at least as back in time as 2003.

[18][19] She is also a regular media contributor, appearing weekly on the political talk show El gato al agua on Intereconomía TV, as well as on various programmes on CNN en Español, commenting on current events in Cuba.

[10][22][23][24] In December 2018, Monasterio stated that her life has been threatened and that she's been physically assaulted, spat on, and insulted as well as hit by rocks by "feminists".

[25] Monasterio is a speaker for HazteOir (English: Make Yourself Heard), having supported the latter group's polemical bus sporting a message that denied the existence of transexuality in children.

[34][35] Monasterio is against the practice of surrogacy and talking to children about choices in sexual orientation such as zoophilia, which regional authorities have stated do not exist as she describes.

[38] She was one of the promoters of a requirement before the Spanish Ombudsman filed in November 2016 criticising the regional government of Madrid for banning conversion therapies to "cure gays", asking for a repeal initiative to be formulated before the Constitutional Court.

[39] Monasterio is a climate change denier,[40] would like to deport all illegal immigrants and believes criminals should receive life in prison.