Thanks for the info...yes the milbank can for 2 meters seems the way to go. LK, there is no common circuits between the apartments. Each apartment only has at this time, a main, range and 4 circuit fuse panel.
The only thing I will be adding will be a 10KW heat/unit under the crawl space and a 2 ton A/C unit outside. It looks like they have electric water heater, maybe electric range, don't know for sure since there is a gas meter outside??? Thanks for the help.. Steve..