Thank you for the detailed responses and suggestions.
Re Sometimes you can just run one or two wires to things which use a lot of electricity, then this offloads the other things on those circuits. An easy one for example is if you have a window A/C. Can run a new wire to this on an outside wall.
This sounds like a good approach for us--most of the heavy use appliances are on outside walls.
Or it could be that the people on the board do not quite understand all this and there was a "misunderstanding/miscommunication" with the electrician.
I don't think my neighbors would object if I said that this is not a particularly house-savvy group. Based on what I've learned here, perhaps the electrician said that he could incorporate the upgrade to 120 amp when he replaced the panels/breaker boxes--implying that the owners of each unit would take things from there (at their own expense)--but the implication was lost in the translation.
RE Unless there are dedicated wires back to the panel box from the outlets they intend to split off... and It could be that currently there are several wires going back to the main panel, but some are connected in that area to the same breaker... and associated code issues--
Would this arrangement interfere with the breaker's ability to detect an overloaded circuit?
Somewhere between the issues associated with the FPE panels/electrical service upgrade; intermittent water pressure problems caused by corroding galvanized pipes; deferred maintenance issues regarding the steam heating system; (not to mention the current housing market) I've lost sight of the reason that home ownership is considered part of the "American Dream."