Who and when can someone contest or object to part or all of a will?
A person can object to a part or all of the will when they are a family member, normally a spouse or child. Grandchildren do it. There is a question about their capacity, there’s a question about undue influence of one or more other people. Again, the best way to avoid these problems is to anticipate them and to document your rationale for what you’ve done in your will or trust.