In the end, the building is owned by the WTS, thanks to a cool trick that involves incorporating each congregation - which allows them to operate as a charitable organization in its own right, but with built in payments to the WTS (makes it sound like a franchise).
Can someone elaborate on this or corroborate it? I still have a hard time believing that somehow if a Kingdom Hall mortgage were to be paid off completely, that somehow the Watchtower would be the owner of the Hall. To me this sounds like an xJW urban legend.
I think their real M.O. is when a Hall is close to being paid off, telling the congregation its time for either a new Hall or an expensive remodel project. I have seen this happen in almost every Hall I have attended.
No Apologies