Not simply anyone may challenge the validity of a Will. Though state laws differ somewhat, all need that you be related to the Will in some manner. Typically, you must be able to show that you would have received more from the decedent, if he or she had actually died without a Will; or if she or he wrote an earlier Will that left you more than the present Will.
Concern 2: When can I challenge the Will?
Question 3: How can I overturn a Will?