I for sure agree that advertising "420 friendly" would drive away families and none smokers, but isn't that the idea of having an intentional avatar and customer in mind? 

Second the idea above to add a little color with plants, house flag, house name sign, etc. 6) Move that grill from the porch corner.

The only downside is there is a smoker next door. 

Actually this is a better post on ozone.http://www.biggerpockets.com/forums/67/topics/78889-smoker-rehab-keys-to-success-with-tobacco-smoke--before-after-pics

I would say that either qualifies him as a dealer or a big time smoker.

I would put the patio, not sure about the grill.

However, I was curious with Memorial Day weekend approaching am I able to hold our meeting at my house and simply write off 50% of the grocery bill for items we grill out versus eating out?

I've had success cleaning up after a heavy smoker who used my approach (before I acquired the property).

Accept that your units may attract other smokers and users of other addictive substances.

I put in my requirements that they must have a 640 credit score and at least $xx,xxx of income(35x monthly rent) and non-smoker, and so on.