OSAS & OSEJI is an indigenous firm of Estate Surveyors and Valuers registered in Nigeria as business concern with registration No. 0012957 (KN) and recognized by the Estate Surveyors and Valuers Registration Board of Nigeria (ESVARBON) to practice the Profession of Estate Surveying and valuation throughout the Federation. The firm has offices in Port Harcourt, Kano, Abuja, Calabar and Lagos, which are manned by Estate Surveyors and Valuers of considerable experience and competence. We have attached particular of registration for your attention.