Yes, it happens, but with a little respect and patience added to the process, most of the professional renters can be smoked out long before they sign a lease.  

No cigarette in hand, because as soon as he sees my screen door open, he stubs out his cig.When they (the smoker guy and his girlfriend) signed the lease, I reiterated to them very strongly that there is no smoking allowed anywhere on the premises, and they initialed that page of the lease that includes the no smoking clause, in italics.  

It's really just a smoke screen to decrease density.

No harm except for some smoke.

This sounds like just all smoke and mirrors/BS. 

There went my $10,000 up in smoke. 

We also need at least the house electric on for smokes and COs, which is law. 

, does anyone smoke?

Also $20 for NSF checks.Most of our rental agreement violation fees are $50, for such things as late rent fee, unauthorized occupant fee, unauthorized pet fee, smoking fee, tampering with smoke/CO detector fee, etc.

This property will need a total rehab because of the fire, smoke, and water damage.