UGH. My mom smokes, so I was used to it when I was growing up...now I am offended by people who smoke...as a police officer I always ask people to put their cigarette out when I walk up to their car. I always ask nicely, no need to be rude, but a lot of times they get irritated (I thank them for putting it out when they do, but if they throw the butt out the window I either ask them to pick it up ... if they are courteous...if they refuse I write them for illegal dumping).
As far as I am concerned, a person's right to smoke ends where my lungs begin. Blech.
No apartment/condo living for me for that reason. BUT (also having refereed many a dispute) try to address the neighbor as courteously as possible (maybe bring her a plant or something) and see if they will put a fan on THEIR porch to help blow it out rather than up??