How to get in assisted living if 89 yr old mind good except lives in a terrible nasty house? She hoards things, hardly room to walk.

Call APS and let them sort it. You, yourself, should not get mixed up in this.
There is nothing you can do with a senior who is competent in making their own decisions.

I agree with others who posted that APS should be notified of this situation.

Please don’t try to help her up and risk hurting your back. Calling for emergency personnel is the best thing to do.

Call Council on Aging for a needs assessment if you wish. They will help guide you through the caregiving process.

I will second placing a call to Adult Protective Services(APS)and making them aware of the unhealthy living conditions this women lives in and let them come out and do an assessment on the situation.
They can then handle things from their end if they see fit to.

This is a problem with no good answer. APS can be notified to keep an eye on her. If she isn’t willing to move, she doesn’t have to until the gov intervenes.
It’s a horrible situation for all concerned. I’m sorry.