I can get some of the research I've pulled together and show it to you. Owners of the building have been particularly difficult to track down. No one wants to let on they own the building, for whatever reason. The only owners I could find only had the building for brief periods. Real estate brokers, mostly, but if you're interested, I could send you the names I was able to find.
I don't think anyone is arguing that. Why the sudden urge to root out the problem?