Occam's razor would lead to this summary: person finds out that the apartment was built on a former toxic waste site, gives themselves a panic attack.

Of course, there is always the possibility that her unit was somehow special, but it's incredibly unlikely. Statements like "how would they know I was looking into it" and " and "why would they offer me to break the lease with no penalty" further strengthen the mental health angle.

This isn't to make fun or diminish the author's concerns. It's just that one root cause is much much more likely and really should be investigated first. I hope she has someone caring in her life to look into that angle.

Edit: happy to burn some karma on this in case this helps someone get help for a loved one. Mental health issues are excruciatingly hard to deal with and I have first hand experience. It sucks when you realize that to help someone you have to go against their wishes.

This one seems pretty clear cut. The landlord wishing that she would go away is a conspiracy? She talked about this for weeks and is surprised someone thought she may have looked at the environmental reports? And lastly, everyone in the neighboring units is totally fine.

And by the way, I am not saying "she is crazy". I am saying "look into both possibilities". I am happy to see that the comment at the top with the most votes is saying the exact same thing.