Mother-in-law problems?

You sound very with it, but who is the mother of these children are you? if you are ok with the discounted rental then leave it at that, but if you are not then change it, I don't think changing the arrangement to spite someone else will make you feel any better, if you financially are ok and can afford to let her be then that's ok but if you are not then please suit your own family, again you are not any body's else's mother and I think your mother in law although might not mean to is suiting herself with you in order to accommodate her children she is soft with them and that's understandable but if the arrangement does not sut you then please amend it for yourself and don't allow yourself to be take advantage of take care xx