NatashaLynn can your dad tell you if he knows if your city allows property owners to do own electrical or plumbing work when its a two unit or a single family home ( inspections would know the answer, but with the fact that the line has been cut to the home its likely inspections might have to inspect it.) BTW you don't share a basement with the neighbor do you ? , if you do then its time daily go into it incase they try to steal electric from you! AS to what your city inspections desk will or wont do , this is truly a local issue, when I lived in Minneapolis something like this would have generated a 24 hour repair order from the city or they would have condemned the place and forced the tenants to vacate. The only thing that was better about it was when a condemnation happens in mpls a landlord has 5 days to return the tenants damage deposit or a penalty is added. Last for now, if you have any outdoor outlets pay attention to them incase the neighbor steals from you via extension cord thru his or her window to your outside outlet.