Unsafe home. Any advice?

I'm back again with a different question. My disabled mom lives in a co-op for nearly 50 years and since her accident she hasn't been able to fix things and has no money. Are there any organizations that can help? She can't bathe anymore and needs a walk in tub/shower also but has no money to have these things done.
Also, her building has been trying to get her out for years and treat her like garbage. No one talks to her and all the residents talk badly about her right next to her front door. They are doing everything in their power to make her get out by passive aggressive methods. Just recently a resident started yelling at her because she was getting a package delivered. They really treat her inhumanely and don't even acknowledge her. I fear her getting more and more depressed and not caring at all about herself. Since her dog died a few years back, she is pretty much alone and the quietest person in the building yet they blame her for numerous things in the building. I know she misses her dog a lot.
I sure could use some advice. I really don't know what to do or how to go about helping.
Thanks to all!