[DukesMommy]

I suggest that if you talk to the neighbor whom you think complained, first ask if it was her, that way she doesn't think you are "attacking" her, then if she says it was, ask her if she is positive that it's your dog and not the others. You can never be positive how they are acting when you are gone, I know Duke used to pitch a fit anytime I left, fortunately for me though when I was in an apt the old lady next door said he didn't bother her much.
for the nurse, it's not your fault she works unordinary hours, and no one legally is going to make anyone cater to her because of that. It's just something that goes along with working night shifts...