["My neighbor in my duplex is still up at this hour doing some kind of sanding and sawing! I asked him to stop and he won't!"]
That is very disrespectful, especially since he is not in a stand-alone home.  Can you tell your landlord about it?
My neighbor in my duplex is still up at this hour doing some kind of sanding and sawing!  I asked him to stop and he won't!