They can consume marijuana in other forms.Smoking, by burning plant materials, whether cigarettes or marijuana or cigars, is going to smell and permeate.

(it's really nice and basically beachfront so they tolerate it)   Heavy smoke permeates everything. 

Often tenants shoes, nicotine odor make your property with tear and wear to deal with.

The unit isn’t very nice, she’s a smoker and there’s nicotine on the walls so I can’t even slap some paint on the walls to make improvements.

In balloon framing you close off the top and bottom of the walls.Actually, there has been a fair amount of research (visit the Building Sciences Corporation library for one source) demonstrating that moisture - from external water penetration or air leakage (or, form the interior if open cell foam is used -  can frequently permeate the roof deck causing deterioration (rotting) of the deck itself and/or mould growth.  

My rental unit is non smoking, and upon lease termination the whole apartment smells like smoke, as well as dried up nicotine spots all over the walls.

Created to help curb smoking in guestrooms, this smart device detects nicotine or marijuana and then alerts the owner through a cloud-based notification system.

The cat had pissed under the couch and the tenants never cleaned it up, so it rotted through the carpet, subfloor, and the smell permeated into the floor joists.

This gives the smokers some time to find a new apartment or finally use that nicotine patch they've been meaning to get around to for years3: Hold your nose and keep it smoking4: Raise rents for some people more than others (maybe higher than prevailing local rents), documenting for yourself that there are more costs associated with smoking and animals, with the expectation that your smokers will move out over timeI've done both #1 and #2 with properties I've purchased with inherited smoking tenants, and I haven't had to resort to eviction (for this reason) yet. 

The 3 bedroom side had larger areas to repair; however the scope of repairs were less than the 1 bedroom side.I spent the first 2 weeks scrubbing the walls and ceiling with TSP to get the Nicotine and Tar out.