A home made will might say "I leave my house at Hurstville and my Commonwealth Bank account to my wife Mabel, any other money to my sister and my car to my son". This might be fine at the time but what if you have sold the house at Hurstville (perhaps it was sold by your Power of Attorney because you are in a nursing home), the Commonwealth Bank is now called the Murdoch Bank and there is no car ? - the effect of the will, will be completely different. The money from the house will go to your sister and your wife and son will get nothing.
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