Smoking in an Apartment/Rental

I have smoked in all of my apartments thus far and have had no real negative commentary or results from doing so...I do typically have at least a window open..plus the fans going...and the AC unit....Only once has a tenant complained...but she smokes Newports on her patio and throws them on to the roofs of the cars below her porch...so, she does not count according to the lease agents...