Question 126: Rank Certification Part 1

I have been practicing the martial arts for many years and have taught and worked at my instructor’s school the program director for many years. I had a disagreement with my Instructor regarding his treatment of me and was asked to leave the school permanently. Following the incident, my fellow black belt students advised me to open a school of my own for children. However, my instructor never issued a rank certificates. How to I go about getting certified as a black belt instructor?