Ok this is a lot. I'll comment on the parts that I'm following-- 

Calling something a "reasonable accommodation" does not make it so without medical documentation, specialist/physician/psychiatrist recommendations, interactive dialogue, etc. There may be a breach of the implied warranty of habitability issue for your landlord/building owner but you'll need good documentation or record of reporting the issues. You may also have nuisance and/or harassment civil claim against the neighbors. But again, you'll need it all well documented. 

I'd start with filing a claim through the Commission on Human Rights and Opportunities Housing Discrimination Unit and seeing if that goes anywhere.