When lighting a chimney of coals i'd probably move away from the building as far as possible. Also, i'd keep my grill/smoker as far away as you are comfortable with to avoid smoking them out.
Since you live in a condo/apt. situation, you need to be a little more respectful of everyone around you. Don't just give up the smoker/grill, but just be sure to keep them in mind when letting the smoke fly.
Like my father always said: "Don't let your good time ruin another person's good time".
I would probably go talk to them and tell them you usually grill X amount of times per month and if they would like a heads up before you fire up your grill, you'd be happy to let them know.
