Not simply anybody might challenge the credibility of a Will. Though state laws vary somewhat, all require that you be connected to the Will in some way. Usually, you must have the ability to show that you would have gotten more from the decedent, if she or he had actually passed away without a Will; or if she or he composed an earlier Will that left you more than the present Will.
Concern 2: When can I challenge the Will? Question 3: How can I reverse a Will?