Adefemi has a B.Sc honours degree in Economics and is an associate member of the Institute of Chartered Accountant of Nigerian (ICAN).
He is also a member of several other professional bodies including,
- The Institute of Chartered Economists of Nigerian (ICEN)
- The Chartered Institute of Taxation of Nigeria (CITN)
- Information System Audit and Control Association
- The Nigerian Institute of Management (NIM)
A Fellow of Institute of Strategic Human Capital Management (ISHCM) 2015.In 2016, he became an Associate member of the Financial Reporting Council of Nigeria (FRCN).