live in or help for nights

a friend of ours on good block needs some advice
here is the situation
I just moved to this area, so I dont know many people.
I have 4 boys, but only the younger two need the child care. Ages 4 and 7.
I work late nights so the times I need sitters is 7pm - 4am. Up to 5 nights a week including weekends.
Since the hours are so late, and the nights are on school nights, I need this done in my home.
A "Live-in" would work if available. Otherwise I need someone who has transportation.
The help around the house is to keep up with the daily cleaning.

Thanks for any help you can give me.