Not just anyone might challenge the credibility of a Will. Though state laws vary slightly, all require that you be related to the Will in some way. Usually, you need to be able to show that you would have received more from the decedent, if he or she had actually passed away without a Will; or if he or she composed an earlier Will that left you more than the current Will.
Concern 2: When can I challenge the Will?
Question 3: How can I reverse a Will?