I don't know how true it is, but we were told that when we bought our place 5yrs ago, to put both mine and my wifes name on the Tapu, meaning that if anything happened to either one of us, the other inherits automatically. the in some was to happen to the pair of us, the property is split 50/50 with both out daughters.
As I said earlier, i'm not sure how true this is? As with most things to do with law, take nothing for granted until a test case has gone through the courts.
Pete