Worried about noise complaints

[Christie Gahan]

 I am starting my first MTR in a split level house.  The lowest level has a new unit and I would like this to MTR.  I am worried about noise complaints from the MTR.  They are both vacant now but I need to get them filled.  I'm paralyzed.  Please help me get un stuck.  What would you do in my shoes?

Anything specific in lease agreements?  Do I have a noise complaint clause? Can it be more restrictive then the city noise rules?  Do I just talk to them?  Did I mess up by not soundproofing the ceiling or walls ?  Aaagh  I'm driving myself crazy.  Help is appreciated.