L.M.
Sounds like you're dealing with a paranoid schitzophrenic, sorry if I spelled that wrong. My mother is too. And she's manic depressive. All my life I've been dealing with her "false police reports" and somtimes she uses my name. Of course the police called me and asked if I filed such a report and I explained her condition. She is medicated and thats most important! She seems evil and I know its sad that I'm speaking of my mother this way but she lies, cheats and steals from her own children, and she been doing it since we were little. She is really messed up, but for you, you can put a limit to her appearances in your home. If that means you have to move, then so be it. I just did, because my my moved less than a block away at my old house. You can NOT tell her anything about your family or she'll use that little piece of info. to ruin you. My mother has called child protective services on me, her own blood, when she knows damn well I am a licensed certified teacher and I know much more about raising kids than she does. And I can say this cause we all grew up in foster care. She wants to see her grand kids now and do better with them cause she did terrible with her own. Your husband has probably been subject to this his whole life. You both need to stay on the same page and agree what the boundaries are and enforce them together. Is she married? Does her husband have any say in what she does? My moms bf tries to talk some sense into her and she's been doing well since she's been with him (less than a year). I am constantly on guard with her still. If you would like to discuss anything further, please reply. I'd be happy to help.
L.