FFVII contains 18 towns/villages including Temple of the Ancients and The Forgotten City. Not including Chocobo Sage or the Weapon Dealer. A standard monopoly board has 22 locations, not including the 4 stations and 2 utilities.

I think they'd have to split up Midgar somehow (Shinra HQ as Mayfair, 7th Heaven as Old Kent Road etc.). Perhaps having the utilities as Mako and Coal, since they're the two notable power sources in the game (or maybe the Lifestream?).

As for the Stations they could do different Sectors I suppose, but that may be a bit bland. Perhaps doing the ports of Junon and Costa Del Sol would be better for two of them.

I'm interested in seeing how it turns out though!