She was married to former president, Leonel Fernández and served as the First Lady of the Dominican Republic from 2004 to 2012.

[4] During the years 1996–2000, she assisted as legal counselor to the president nominated as sub-secretary of state.

She has a bachelor's in law from the Autonomous University of Santo Domingo and a master's in economic Llllegislation from the Pontificia Universidad Católica Madre y Maestra.

[4] On 16 October 2009, Cedeño was named Goodwill Ambassador of the Food and Agriculture Organization of the United Nations (FAO).

[6] When she was the First Lady (2004–2012), she and her staff coordinated social policies for her husband's administration, generating programs of health and education for children, young people, single mothers and families, in general, as a key element in society.