[pizza]

I may be younger than you have been renting out apartments for, but it seems to me that the first 3 cues in particular might not be that effective in discriminatory power?

1) I'm estimating memory lapse / brain fog etc in the general population is much more prevalent in non-pot-smokers for general reasons -- hell, depression affects something like 5-10% of Americans which iirc is many times over the fraction of people who would wake and bake prior their apt. showing. Yeah, memory problems are a strong signal when you know a specific person is blazed, but across the whole of the population this is going to be a filter with a really high false positive rate.

2) kinda seems like a proxy to their parents' wealth, maybe that matters to you but really should the equivalent of an SAT score really predict the ability for a tenant to keep to the contract?

3) there could be a couple of effects at play here. Kind of another proxy to parents' wealth. People might also put their guard up once they notice you sizing them up. But conveying professionalism as a game theoretic 'signaling' strategy - https://en.wikipedia.org/wiki/Conspicuous_consumption

Cigarettes though? probably not a bad indicator. I think as a whole they probably do more damage to the building and other tenants, too.