Will Contest

My friend, who had no children or wife, died suddenly. His sister is contesting his will. Will she succeed?

This headline from MarketWatch describes a probate dispute where a deceased individual's sister is contesting a will, despite the deceased having no immediate family (children or wife). The core issue will likely revolve around the validity of the will, focusing on aspects like proper execution, testamentary capacity of the deceased, or undue influence, which could determine the sister's success in her challenge.