Sorry this is long, but we are looking for help and advice for a loved one, my Mother.

My mother has pushed all three of her children away over the last 13 years. One by one, she has said something horrible that have had us not want to be part of her life. They all have happened in the same way. She will say something shocking and un-truthful about our significant others or children. Some examples: She said my wife’s father is actually the father of my son (basically claiming incest). She has said that my sister’s husband drugs her and pimps her out while she is knocked out. Also, that he sexually violates my nephew. She has also said that my other sister’s husband fools around and is only after her money. She has also made claims that both of my sister’s husbands have made sexual advances at her.
Everything is always about sexual behavior or abuse. She has even made child abuse claims against my sister’s husband which caused an investigation from social workers. My sister IS a social worker and even though the claim was investigated and cleared, she lost her job as a claim was opened against her and her job did not want that in a case worker.

My mother is very lucid and says things with incredible detail. She is a sweet looking frail woman and makes friends very easily. For this reason, people are always shocked and believe her 99% of the time. She believes what she says with everything in her being. However, when we confront her, she denies it all saying she would never say that. It is always lies from everybody and that the world is against her. She refuses to get help as she feels nothing is wrong.

We cannot file a restraining order as she has not done anything. Can anything be done to file something about her mental well-being to stop cops and social workers from visiting thinking we are monsters?

My mother has had a very rough life. She was abused and raped as a youth with her father being mentally and physically abusive. This is where we think these hallucinations of sexual acts about us manifest themselves. It is almost as if the things that happened in her life are what she tells people about us and our loved ones. We are all mentally drained and don’t know what to do. I'm not even sure what to call her condition? Any advice would be greatly appreciated.