Zanne, it has been sad hearing of your mom's struggles.
She is fortunate to have you guys close.
My mom passed away March 26 after being at assisted living for just over a year. If mom had been willing to live close to any one of us three sibs, she would have gotten the focused attention that you are giving your mom...alas, my mom wanted to be in her "community", but in the end, we couldn't keep up with traveling 6 hours each direction to help her routinely. So, started hospice for pain control, rather than invasive medical intervention and within two weeks she was gone. She was 96 but had "end stage" (her doctor's terms) arthritis in every major joint. Lots of arthritis drugs, plus Oxycontin AND Fentanyl patchs didn't help, it was so bad.