Unable to load certain households

Teagirl_A  That's good, then the problem is the house itself, not the sims.  If you want to try to recover the house, try deleting one room at a time.  If and when you find the problem room, you can narrow it down from there.  Don't save your progress; just keep quitting and reloading until you figure out which item(s) you need to delete.

Or you could continue with the sims living elsewhere.  It's your choice.