They have begun to become so stealthy, they look just like the little vape pens you purchase at the gas station for your nicotine fix.

@Anita MuhammadI do not allow any tenant to smoke / vape etc. not only is the smell impossible to get out but also it’s a fire hazardThe rest is up to you and how you define the lease.

Initially started off in the car business but didn't want to get burnt out on my making my hobby my business, then moved onto retail (vape shop) and have been doing a lot better than I expected.

Here's our No-Smoking Policy:NO-SMOKING POLICY.Tenant acknowledges the premises are designated as smoke-free and agrees not to smoke and will not allow their family members or guests to smoke on the premises, either inside the unit or outside on adjoining grounds.Tenant agrees to abide by this no-smoking policy and to notify their guests and invitees of the policy as well.This includes smoking tobacco, marijuana, or any other substance, as well as vaping.

She also talked about vaping a couple months ago, and we will not allow any smoking or vaping on our property.

"Vaping" is starting to become a multi-billion dollar industry changing the rules on "smoking" and tobacco legislation.  

Like investors and rehabbers don't already have a bad reputation and plenty of bad PR. A

Your lease should say no smoking or vaping (of any product) and should include penalties for violating the rule.

“vaping”).

Then again its your property so do what you feel is fit but I will say, I respect smoking outside more then vaping your strawberry apple vape inside which I'm sure most of your tenants do given they are mostly students.