We have prosecuted successful claims on behalf of widows, children, adopted children, defacto wives, defacto children, grandchildren, nephews, and nieces, divorced and/or former wives, mistresses, gay and lesbian lovers, carers, sex workers, neighbours, close friends, etc.
From 1 January 2015, the categories of people who can bring these claims have become more restrictive. There have been significant Court decisions relating to step-children and the rubbery “member of the household” category.
( There is no difference between “challenging” a will and “contesting” a will. “Challenging a will” and “contesting a will” are simply different phrases to describe the same legal processes. )