Our Staff

Central Tucson, Arizona

DENNIS O’REILLY - Head of Schools

Dennis O’ReillyMr. O’Reilly started working with young people as a volunteer junior high basketball coach back in 1990, and has been in education for over twenty years, starting as a middle school math teacher back in 1993. Mr. O’Reilly has been an administrator since 1999 serving as Curriculum Coordinator, Assistant to the Principal, Principal, and Head of Schools at three different private schools in Tucson, Arizona and earned his Master’s Degree in Educational Leadership from Chapman University. Mr. O’Reilly has been married for sixteen years to his beautiful bride Krissy, and will have two scholars attending Leman Academy, Conner and Adeline.




Katie KrasinskiMs. Katie was born and raised here in Tucson, Arizona. She is a proud Wildcat and received her Bachelor's degree in Communication from the University of Arizona in 2018. Since 2015, she has worked with the City of Tucson to provide recreational programs for children in the community. Ms. Katie is passionate about working with the youth in the community and volunteering for non-profit organizations. She enjoys soaking up the Tucson heat while hiking and being outdoors. She is very excited to be a part of the Leman Academy team and to work with the scholars and their families.



Sara Fuller
Ms. Sara is from Tucson, Az but spent almost 20 years as a military spouse living in Texas, California and Oklahoma. She has 3 daughters; Kayla, 22 attending Texas State University, Grace, 19 attending Boise State University and Sophia, 14 attending Cienega High School. Ms. Sara has been teaching preschool for over 10 years and recently moved from TUSD to Leman. Ms. Sara got her associates degree In Early Childhood Education from Central Texas College and is currently attending Grand Canyon University for her Bachelors in Early Childhood Education with a minor in Early Childhood Special Education. Ms. Sara loves spending time with her daughters and dogs, hiking, on vacation at the beach, buying plants or watching football.



Leslie Lopez
Leslie is a mother of one daughter who is age 5. She has a passion for education and is currently completing her bachelors in Elementary Education from Grand Canyon University. Her favorite quote is by Frederick Douglass and it states, “It is easier to build strong children, than to repair broken adults.” She enjoys reading, laughing, and dancing. She is thrilled to be a part of the Leman Academy team and plant the seeds of knowledge that will grow forever.