Keazor joined the Nigerian Board of Inland Revenue as a legal adviser in 1969, and then the Ministry of Justice as Principal State Counsel.
He worked in the Nigerian Civil Service in several capacities but most notably as counsel to the Government of Nigeria in the massive joint venture Warri Refinery project.
He retired from the Federal Civil Service as Deputy Solicitor Generalm and joined Cadbury PLC as legal counsel and company secretary In 1981.
He remains active in the Alumni Association of this body, having variously occupied the positions of Secretary-General[1] and Regional Chairman.
Generally regarded as a being of high moral integrity by his peers, Keazor has remained active after retirement, acting as chairman of an election tribunal in 1991[2] and he served as chairman of an investigative panel into fraudulent contracts awarded by the previous Anambra State administration.