Our Leadership Team

The Leadership Team at St. Theresa Catholic School provides strategic direction and ensures that every aspect of school life works together to advance the school’s Catholic mission and educational excellence. Its responsibilities include faith formation, curriculum and instruction, organizational leadership, administration, technology, financial stewardship, and long-term strategic planning.

Fr. Manny Alvarez – Pastor

Father Manny has been a priest of the Archdiocese of Miami for 24 years and has served as Pastor of Church of the Little Flower since June 2019. He has a deep love for the education and faith formation of our students and school families. He is regularly present around the school campus, making himself available to students and staff alike.

Sr. Rosalie, OCD – School Principal

Our school principal, Sister Rosalie, is a member of the Carmelite Sisters of the Most Sacred Heart of Los Angeles. Sr. Rosalie’s gift of religious vocation, combined with her leadership and educational training, is a source of strength to carry out our school’s mission. While meeting and exceeding the academic requirements of the archdiocese, our association with the Carmelite Sisters helps foster an environment of respect, love for those in need and appreciation for God’s creation.

Ms. Gloria Marti – Assistant Principal, Grade 5 – 8

Mrs. Cristina Guanche-Martinez – Assistant Principal, Grade PK – 4

Cristina Guanche-Martinez has been a dedicated member of the school community since 1998, bringing nearly three decades of experience across instructional and leadership roles. Her classroom work across multiple grade levels laid the foundation for her role as Assistant Principal of Curriculum, where she supported teachers, instructional programs, and schoolwide academic initiatives. Now serving as Assistant Principal for grades PK–4, Cristina combines her personal and professional connection to the school she calls home with a commitment to supporting educators and partnering with families to create a nurturing, academically strong environment where every child can learn, grow, and feel a sense of belonging.

Dr. Leticia Torres – Director of Curriculum

Dr. Leticia Torres joined St. Theresa School in 2025 as Director of Curriculum, bringing over 30 years of experience in Catholic education within the Archdiocese of Miami. Her experience spans all levels, from preschool through college, giving her a broad perspective on teaching, learning, and curriculum. With both a Doctorate and Master’s degree in Curriculum and Instruction, she brings extensive experience in educational leadership, curriculum development, and supporting teachers and students.

Mrs. Nathalie Gonzalez – Director of Admissions

Mrs. Denise Sainz – Parish Finance Director

Mr. Jorge Santibáñez – Parish Manager

Jorge Santibáñez has been a member of the Parish staff since 2012, serving as Youth Minister and Coordinator of Ministries. With a background in Religious Education, he assumed the role of Parish Director of Religious Education in 2014 and began assisting with the school’s Sacramental Prep program shortly afterwards. He currently serves as Parish Manager and Chief of Staff to the Pastor, overseeing both day-to-day parish operations and the execution of its long-term strategic planning.