Fernandez completed his primary and secondary education in Salcedo, later attending the Instituto Superior de Agricultura (English: Higher Institute of Agriculture) (ISA), studying agronomy.

After various travels through Italy, Germany and Greece where he helped treat many patients in these countries, he undertook further study in social medicine.

From the age of 13 he decided to organize athletic competitions in his hometown, Ojo de Agua, Salcedo, in memory of his aunts the Mirabal Sisters.

Fernandez has also demonstrated his interests in education, becoming a member of the Society of Parents and Friends of the School, and serving as an important part of the Committee on Rural Health Clinic.

He has also participated in the training of farmers' associations and mothers' clubs, with a single, clear objective of promoting good moral values, and providing educational and recreational services throughout the country.

Fernandez admired and followed the doctrine and ideology of Professor Juan Bosch, becoming convinced that to better promote social welfare activities, he had to go into politics.

During the government of Dr. Joaquín Balaguer, he helped to create a Provincial Development Program, which was recognized both nationally and internationally, especially in the areas of health, education, drinking water, and loans for women-run businesses.