Although Wills don’t expire, changes in the law and in your family dynamics and finances necessitate revisions periodically. The obvious triggers are marriage, divorce, birth of a child, and death of a spouse, but there are less obvious reasons as well. Changes in your children’s circumstances (disability, divorce, financial problems) can warrant including a testamentary trust in your will to protect that child’s share of your estate from his creditors. If your Will names your spouse executor and your child as alternate executor but your spouse has died, then your child is the executor and you have no alternate. Also, if you have added a child to certain bank accounts or designated assets as POD (payable on death) to a certain child, you would need to change the distribution under your Will to equalize the total assets passing to each child. Or, if your spouse is likely to require long term care if you predecease her, you might want to leave your estate to your children or a trust, so that the assets don’t get consumed on her care before she qualifies for Medicaid or VA Aid and Attendance.