If it were me in a situation where I lived in a rental and they banned vaping, I'd just move to a place that favors my lifestyle choices. If I'm paying to live somewhere you can be sure that it's going to be living there on terms that fit me. If those terms change, I'll move onto the next place that suits me. I'd be upfront in a way that avoids any possible future conflicts and tell the prospective landlord that I do not smoke, but I'd tell them that I do vape. If that's a problem, I'll move onto the next place until I find suitable living arrangements. No reason to apply for a rental like you have your hat in hand. The way I look at it is that I'm, in some sense, making a purchase (actually a rental, but my money is being spent). While landlords are screening tenants, renters can and should screen landlords and their rules and find a good fit for all concerned...