I am a recent widow and have sold my house down the country and moved back into the family home. My parents are dead and it was left 1/6 to me and 5/6 to my brother. He is single and neither of us have children. We both want to stay in the house until we die. I am planning on spending my money doing it up. I would like more security such as buying an extra share of the house but think this would involve CAT. Is there any other way I could ensure security of residence. We want to leave the property to each other if either of us dies. I am 59 and my brother 52.