A prominent business owner here died several years ago. He was an amazing entrepreneur. When he passed he left an estate rumored to be 9 digits. An extensive estate. Anyway, his three children - a son and two daughters - had been at war with each other for a long time. After the will was read they immediately contacted their legal teams and started suing each other. After years of litigation, the ATTORNIES of all people told the heirs that they really needed to settle because if they didn't the estate would be consumed by legal fees. They heirs did settle and part of the settlement was that some of the families are no longer allowed to speak to each other.
I don't know if this is a good example of contesting a will. Splitting up estates can get really nasty especially when lawyers get involved.