Certain elements must be present for your Will to be valid. Besides being in writing, and not verbally passed through another person, you must complete your Will when you are of sound mind and under no undue influence. Also, a court can determine that a Will is void if it determines that the testator didn’t create and sign their will freely and voluntarily. Also, for a court to recognize your Will as valid, you and your two witnesses must sign it in the presence of each other.