Several years ago, a widowed friend of mine moved in her with her daughter's familiar in a similar type of arrangement. My friend sold her home and used all the proceeds to help build a custom home with a MIL suite. Mind you, the house was large and very nice (the daughter and son in law were able to customize to their preferences), and my friend's contribution was so significant that her daughter and son in law only had a small mortgage. My friend even signed over her part of ownership in the house to her daughter.
My friend spent years caring for her grandchildren full time with short breaks to go visit her two sons. Everything seemed to be going well until last year when my friend started having health troubles and was no longer able to help out with the cooking and cleaning (grandchildren no longer need minding). At that point, her daughter wanted to put her in a home. It wasn't that my friend could no longer care for herself; it was that she could no longer do the things her daughter didn't want to do. I understand that caring is very hard; I've cared for many of my family members through the years, but I felt this daughter was in the wrong. She basically used her mom as a childminder, maid, and housekeeper for years, and now that her mom needs help, she's trying to offload her in a home.
My friend is now very hurt and trying to figure out what to do. She doesn't have any money because she sold the only asset she had when her husband died and gave it all to the daughter. Her sons are not in situations where they can take her and both sons feel that the daughter needs to pony up since she is the one who benefitted all these years.
Ugh, it all just seems so sad to me.