New landlord - Allow a smoker?

[Daniel Dylan]

I'm a new landlord in a HCOL area with lots of highly paid young professionals. I have a well qualified applicant (2 friends whom lived together before), but one of them let me know they smoke. They assured me they would only do it outside, but not sure I can completely trust them. The other friend doesn't smoke.

They would be sharing the security deposit (~2500-3000) so I think that gives some security, but really on the fence. It seems like worst case that would cover the cost to repaint. I only have hardwood, no carpet. 

How does everyone feel about smokers? I have a few other applicants, but no one as qualified as these folks.