For many people who have had relatives pass away with either complex wills, or no will at all, don't like the sound of the word "probate." They may associate it as a state of deadlock that puts their ability to inherit from their loved ones on hold while they wrestle with the court system. When proper estate plans are made by a person of sound mind, and a valid will and/or living trust is left behind, the probate process actually goes fairly smoothly most of the time. But there are instances when things just don't seem to be right, and in these cases challenging a will may be the right course of action, even if it proves to be inconvenient for others. Here are some situations where contesting may be appropriate.