It's not fair, but that's how it works.It's just like owners are cited for smoke detectors when the inspector comes and the tenants have failed to keep up batteries (even though it's in the lease), or have pulled them down because they cook smokey foods.

Horrible tenants, dogs cats and everyone smoked and it needed work but we did not appreciate how much.

Most communities are still using silver callboxes, with 1970's era tech. 

You can do regular inspections to see if they're smoking in the unit but there's nothing wrong (legally) with growing the plants.

And the best part they are my longest term tenants looks like their adventure of being free is a dream or blowing smoke. 

, just keep things neutral, occupants, non smoking now has to specify tobacco or other old leases didnt, know service animal regs, and if not important now you will most likely be asked, best advice is document document, I like a short videoed walk through, esp if you can do with tenant, give them a copy so they remember condition too, make it sound like a ribbon cutting but really cwa and hand them everything there, some have forms for direct deposit from bank for rent checks, some have a few preaddressed envelopes, make copies of everything , keep backups, and originals, dedicate a file cabinet if you need too, yes even for disks in their own file, it wont take up that much space and you will be batter to have than not, sounds silly but document inquiries even, (wasnt John Doe asking about a rental last month?

There is always drama - moving boyfriends in without permission, fighting, smoking (and fires that go with it), often unable or unwilling to pay the tiny amount of their portion of the rent, not paying utility bills, helpless to do minor maintenance, unpermitted pets, frivolous inspection failures... after all this, when they finally leave, you have to rehab the entire apartment because it's trashed.   

There is no silver bullet per se!

Such as smoking and leaving a cigarette out which burns the house or some unfortunate accident.

Can you discriminate against the guy that reeks of smoke and booze or has 15 facial tattoos?