Letting go of the MIL

Ok so here it goes for all those people dealing with dragon MIL. I will tell my story in brief.
So we are building a house. She convinced us to come stay with her.to save some money. I have three children. 13 4 and 12 months. When we moved in she no longer wanted to give up her other grandsons room who lives with her. Because the daughter in mentally I'll. So that was cool I didn't want to mess him around anyways. So now is when the games started getting played. She uses everyone around her. My son was 6 months old with croup one time we were out in a caravan. We asked if she could have him in her room. Because he wakes up her reply was no see how he goes....I was like whatever . Anyways she uses emotional blackmail to get what she wants. Treats her sons like absolute crap. Even the grandson!! Her sons father killed himself. They had an argument one time she told him. You treat your parents like shit now one of them is dead. What sort of mother would say those things!! Also left the grandson with the crazy mother because they both had weapons at each other and the daughter had called the ambulance and police on her. She told her she could come over and then drilled her about how shit she has made her life making her look after her son all this in front of the grandson. She told my partner I was out having coffee with friends and leaving my son with her. Never happened cos I was to busy cleaning her house to do anything. She uses the grandson who lives with her against my son. Allows him to hurt my son whenever she is annoyed with us. She kicked us out with three kids. My partner wanted to go back so we did. She then made up that she wasn't aware it was my birthday( on her calendar) She went out took the other grandson (never takes the grandson out anywhere without her other son. Cos apparently she's so sick and dying) and then came back and said he had missed out on cake. But made sure she didn't come back till after I had left for work.so she goes and sets up people so she can lose her shit at them for it. I'm sure she was a great game player and sent a lot of people crazy. However now she is old and her stories just don't make sense and you can see straight though them. So we have been kicked out again!!! For the last time this time. Only 13 days before we move into our new house. So all is good we don't really care. However the point of my post is. These nasty horrible toxic people don't belong in your life!! Family or not. Regardless of weather it's his mum or mine. People like that are not your family they do not have any purpose in your life. You choose who is in your family and who have a positive effect on it. So from experience I'm letting you all know it's ok to never see them again and it doesn't matter they are family cos reality is they are not! They don't care about you or your family only themselves!!! Family is not blood family is love respect support and appreciation