You've probably heard of a will contest: A beneficiary of a will or another party goes to court in an attempt to prove the will is invalid. There are several good reasons for doing so. A party might have access to a will that was written later than the one being probated. A beneficiary might argue that the deceased was not in sound mind when the will was written. There might be allegations that a caregiver pressured the deceased person into revising the will. Whatever the situation, attorneys for the disputing parties can resolve the issue out of court or seek a ruling from a judge.