Dr. Leah May M. Santiago is a registered cost accountant (UK), certified bookkeeper (UK), and certified public accountant (Philippines). She is currently the chairperson of the Accountancy department in the Yu An Log College of Business and Accountancy of the University of St. La Salle (USLS) in Bacolod City where she is an assistant professor. She currently handles the accountancy internship program and has 24 years of experience in teaching basic accounting, partnership, and corporation, accounting for non-accountants, cost accounting and control, and strategic cost management.

Dr. Santiago has evaluated existing costing practices of small and medium enterprises (SMEs) with her students on an annual basis. She also moderated the USLS Commission on Audit, which is an independent student organization tasked to check and verify the accuracy of the financial reports of the different student clubs and organizations. Her publication involves cost accounting practices of SMEs in Bacolod City.

Dr. Santiago earned her bachelor's degree in Accountancy, master's degree in Business Administration, and Ph.D. in Business Management from the University of St. La Salle (USLS) in Bacolod City.