Truth is, you can smoke cigarettes in the unit and it is not likely the neighbors would notice.
Lite cigar would probably go unnoticed.
Refers would likely be intense because of the sharing and would be noticed.
So we will probably go with no smoking of any kind, with the idea that you may be able to get away with it.
If I lived in an apartment where I started smelling dope around me, I’d be making immediate plans to move elsewhere.
Living in apartments always unnerved me, due to the fear of some smoker in an adjacent area falling asleep and starting a fire, which would burn up my valued possessions. I’d be even more alarmed at learning some zonked-out dopehead filth were next door. Seriously, I’d be moving out the very next day.