How to get abusive parent out of the home?

The next time is feeling ill or has symptoms of an illness/ailment...take him to ER. Insist on a social worker and refuse to take him home. Tell the social worker you can no longer take care of him because he is abusive and problematic for the whole family. Give her details what he does and how he is abusive. Stand your ground on refusing to take him home. By doing this, the state has to take over his care, medicare will be involved and any assets her father has such as accounts, home ect. will be frozen so the daughter will not have access to his assets. The state will take over...just be aware that a social worker may try to mediate problems with the purpose of getting the daughter to take him back so she must stand strong and possibly insist on a different social worker to handle the case.

If your friend has tried both of the above posters recommendation, there is a poster who had the same problem with her mother who moved into their home.

Two Years this July my mother has been living with me. She is a mean and hateful woman and I just can’t do it anymore.
https://www.agingcare.com/discussions/Cant-care-for-mean-and-hateful-mother-anymore-150326.htm

It's a very long thread- but I have found a way to read it and you can stop til the next day and NOT keep hitting the "NEXT" button over and over until you reach page 400-410. When you read and decide to stop reading at 201-210 page. You see the top of the page "http/www..."? ... Copy and paste this to your Word File that you have on your computer's desktop.... Then save this file.... When you come back, just open your Saved File on Desktop, click and copy...then log in here and paste it. Tada! You can start reading exactly on page 201-210.

If it is her house she can certainly have him evicted. Depending on the regulations where she lives she may have to give a notice a certain length of time in advance. But she can get police assistance to see that he physically leaves, if necessary.

She can tell APS that she is evicting him, that she doesn't want to see him suffer, but that she cannot have him live with her any longer. They can help him find another living situation or connect him with someone who can.

Why has she put up with this for six years?

I'm sure APS investigated, and she should have told them to get him out of there. Why she keeps him is beyond logic.