I have had a will made because I am in a similar situation, in that we have both been married before, he does not have any kids, but I have one adult daughter. So the will we had done states, that if I die half the estate which was mine will eventually go to my daughter BUT he is allowed to stay in the home until he dies, or gets moved to a care home, or he remarries, THEN she gets my half, so it no way makes him insecure without a roof over his head. I was adamant that wife no 3 was not going to get my daughters due inheritance that I worked hard my life for, because if I had left it as a normal will, he would inherit all my estate and then if he remarried and then died she gets the lot and my daughter does not get a penny!