Dr. Quinn-Leandro was born on the 20th of November 1965. She was educated at the Holy Trinity School, Five Islands Primary School, Pilgrim High School, Ottos Comprehensive and The Antigua Girl's High School.

She has earned a Bachelor of Arts degree in Arts and Mass Communication (First Class Honours) at the University of the West Indies, a Masters Degree in Latin American and Caribbean Studies, Cambridge University (England) and a Doctor of Philosophy in Communications from McGill University (Canada).

Dr. Quinn-Leandro was News Anchor and Talk Show Host at ABS Television where she also served as head of news and current affairs from 1986-1997. She was the Human Resource and Marketing Officer at the Antigua Barbuda Investment Bank, a Communications Consultant at the Caribbean Family Planning Affiliation and the Corporate Communications Consultant for the Antigua Commercial Bank and the Hadeed Corporate Group.

Dr. Quinn-Leandro served as President of the Inter-American Commission of Women (CIM), 2006-2008, a specialized organ of the Organization of American States and the oldest organization committed to addressing the rights of women, gender equality and equity. She is also a member of the Rotary Club of Antigua, Carimac Alumni Association and the Cambridge University Alumni.