In our bad tenant cases, there have been multiple lease violations or late payments but we did not boot them for those violations; instead we raised their rent to where they gave us notice.BTW I had a tenant that was surprised I could discriminate against smokers and indicated she would sue.

I listed and sold a house that had seen 50 years of smokers... we hired a local company to use ozone machines for three days, and it completely eliminated the smoke smell. 

If not, start washing everything and run it again.I used it last year on an apartment that had a smoker living in it for 30 years.

I bought my 2 bed/2 bath condo as a fixer (Seller had been there for over 30 years and was a heavy indoor smoker). 

Software is not my need, either, unless it has a lie detector test for smokers. 

One coat, no cutting in or prepping needed.You can't tell.But I did learn the hard way that it doesn't work with smokers.  

The same management company now put smokers in there (which I never wanted) so I have got rid of that management company and we will see where it goes from there.Hope that helps! 

BUT, they ignored the advice because of an anomaly.That being said, even the 80 year old chain smoker could have benefited by NOT smoking, despite being healthy.

I don't take section 8 and I don't allow smokers or pets.  

I also always listed "absolutely no smokers, not outside smokers, not inside smokers" on my roommate listings, blaming asthma.