USav8or: You're probably right. Sorry but I don't have any contact either... I only heard from a friend of a friend of a friend...
thunderball74: I also went to Business Air to teach the "newly started" ICAO course there before later teaching their regular part 61 and 141 courses. As for PFA I think you mean Pinnacle Flight Academy. If so they didn't open until after Business Air was shut down. Do you by chance know what eventually happened to Pinnacle and Jean? I heard there was some money problems...
As for IFC and Oklahoma as I recall it IFC was "bought" by Airman who was after IFC's J1 visa. The two were initially kept separate (except for the aircraft) and we were still doing the IFC ICAO program. Once it became apparent that Airman couldn't train their students on the IFC visa the school was slowly shut down/merged with Airman (which is when we all quit and went to Business Air).
IFC and Business Air never had a working relationship. The only links were that their chief flight instructor when we moved up was ex IFC and all of us left working at IFC also started there. Airman and Business Air were big competitors.