She is sweet, but thrifty, just like my FIL was. I don't think she expects a free ride,
as she offered to use the proceeds from her home sale, to buy another larger home for all three of us.So, for now I will assume she is willing?
That should not be an offer you should accept. As generous as it seems, you and your wife will be living under
her roof and by
her rules. Should you have a falling out, where will you and your wife go? She has two other places she could go to, even if it to sleep on their couch. Let her invest the monies from the sale of her home.