Estefani lives in La Cienega and speaks Creole, Spanish, a little bit of French, and she is studying English. She has known Sarah since she was a child, and her younger brother Gerson was one of the first students at 3MM!

When she graduated from secondary school she started working at 3MM as a volunteer. She found she liked the way the teachers worked with the kids, and decided to study the Montessori method in Santo Domingo. Now, she has been working as a Montessori teacher at 3MM for four years.