grr, this is a really sore topic for me...
Personally, I have asthma. It has been severe and out of control many times. But in my experience, asthma is not caused by these types of fumes. Asthma attacks are usually caused by allergens. If a resident is disabled to the extent that they need an allergen-free community to prevent or reduce symptoms, there are communities designed to meet their needs, but our community is not one of them.
We resurface counter-tops as needed, and we have 83 units in one building that share common hallways. Everyone's front door opens to the interior hallway. If there is an odor in the building, it spreads everywhere.
A few years ago, we had to refinish the counters in a unit. The lady upstairs from that unit did not call to complain about the odor and was at work during the process. About a week later, she called and said that the odors caused her to get really sick and that she had to go to the emergency room and had to miss a week of work so she wanted us to pay for that. She also said that all of her clothes and furniture had absorbed the odors. She had all her clothes professionally cleaned and wanted us to pay for it. She wanted us to pay to replace all her furniture. She then claimed that the dry cleaner told her that her clothes were permanently damaged so she wanted us to pay to replace all of her clothes.
I'm sure she could smell the odor in the hallway when she came home from work. But I've never had any complaints of illness or damage. We used the same vendor we had always used, and their process had not changed.
It frustrated me because I live in this same building so I know her claims were untrue. I probably shouldn't say how this was resolved other than to say we followed the advice of our attorney.