How long is a will valid?
A Will that has been revoked by someone who is legally competent cannot be revived; you have to make a new Will. So, for example, if you have a Will, then change your mind and write a new Will saying that you revoke the original Will, if you change your mind again and destroy the second Will, that would not make the first Will valid again. You have to remake the original Will.
Though your Will remains valid if you havent divorced, it makes sense to update it regularly if your situation changes, such as by losing contact with your named Personal Representation (or Executor/Executrix) or by changes in the property you hold. For example, if you sell your house and buy a retirement condo, you need to update that information in your Will. Of if you wanted to leave an equal inheritance to 2 children, but the property you left to one has increased in value, while the other has lost value, you might want to make adjustments to your Will.