Do they talk about the fact they like to use their webber grill indoors?

You can always add an addendum to your "official" contract/lease with things like "No grilling on decks"etc. 

Pot smokers always say they aren't smokers.  

:) The plastic blinds will likely be stained, particularly in the room(s) where they smoked most frequently.While folks will suggest to prime with a sealant primer (such as Zinnsser), if there have been long-term smokers, it may not be sufficient - it will cover in the short-term, but the toxins will eventually find their way to the surface again.We helped to renovate a house where the prior owner had been a heavy smoker for 30+ years.  

Grilling, noise, plumbing, ...

Landlords may not want a pot smoker, but it's going to be tough to discriminate in the not too distant future.  

I also don't allow smokers, do you smoke?

Not to go too far afield from the original question but this town is different from any other towns with trains because we are  our own little slice or paradise...when you throw your line in the ocean you pull out a plump tasty fish and when you scatter some seeds you grow our own special datil peppers to make a tasty hot datil sauce to brush on your tasty fish...and then throw some oysters and clams on the beach fire grill...we have oceans where you can surf and skim board and Intracoastal where you can Kayak and windsurf  and marshes where you can see pretty pink spoonbills and historic streets and buildings where you can dress like a pirate and drink rum and go argggg....when you can live here NO ONE I repeat NO ONE wants to live by the tracks...so to the original poster I say I would NOT buy anything on the railroad tracks ! 

I grilled him over and over and he said it could be due to the lint clogging up the heating elements.

Scenarios of subletting, huge amounts of family members moving in, unlisted pets, AirBNB deals under my nose, multiple calls for trivial issues, smokers, hoarders, etc.