Controlling Tenant Smoking in Apartments? Any Ideas?

[Dan Handford]

I recently visited a multifamily property with over 210 units and one of the main issues was the smell of smoke in the units. It wasn't just cigarette smoke...it was a marijuana stench as well.  

When I talked to the on-site property manager about the smoking in the units she said "it's hard to control so we just let them do what they want". 

I was totally baffled by this response. 

I'm curious to know what everyone does about smoking in units that you acquire as I am of the believe that you will lose certain tenants due to the smoke smell.

Thoughts? Ideas?