Mr. Onomee is a Graduate of law from the University of Ife, iie-Ife, Nigeria where he obtained an LL.B (Hons) and LL.M. Mr. Onomee attended the Nigeria Law School, Victoria Island, Lagos and was called to the Nigerian Bar and enrolled as a Solicitor and Advocate of the Supreme Court of Nigeria.

Mr. Onomee has a Bachelor of Law from the Nigerian Law School. He also attended the Nigerian Institute for Advanced Legal Studies, where he obtained an advanced diploma in Practice and Procedure.