From the following Forbes article, "8 Reasons to Revise Your Estate Plan Today," we learn that 51% of Americans age 55 – 64 don't have a Will. That's bad news for their families, who will have to deal with the estate plan default: whatever the rules are for their state. But for those who are smart enough to have an estate plan in place, there are still some maintenance issues that need to be addressed with a review every now and then. Everything changes over time, including your personal and financial situations and tax and estate planning laws.
Even if your estate plan was crafted by a skilled and experienced estate planning attorney, you'll want to talk to him or her if any of these things occur:
Marriage or Re-marriage. This doesn't automatically change the provisions of your will or trust and won't necessarily provide for your new spouse. Talk with your attorney to ensure your plan reflects your new goals, both individually and as a couple.