My Mother-in-law has lived with us for around 6 years and she hasn't been a problem at all. I closed off half of the Garage and made a nice bedroom for her just off our kitchen. She still gets around quite good. She plants a small garden every year (very small) and I'm glad we are able to provide for her. Despite the fact that her two daughters (my wife and sister-in-law) are registered republicans and quite conservative, her and I do not share the same political beliefs, but I simply never talk politics with her.
My mother-in-law is a kind hearted person who will always have a place in our home. After all... she is the one who brought my wife into this world :-)
What a nice man you are! I visit my daughter every summer, and her husband, also a great guy, seems to like having me around! :>))