I am helping my cousin re caveat on will. There were doubts of the capacity to make will and effect. My cousin was not identified in the will as Testator's stepdaughter (of 25 years) and was left 25%. Other beneficiaries named "my sister" 50% and 'my niece" 25%. Play on surnames as all different. The niece is actually the daughter of 'my sister', so 75% to one family in New Zealand who has had no part of my cousin and her stepfather. The will reads like a stocktake list for an interstate removal company, even photos and clothes and car given to sister in NZ. Sister tells the solicitor doesn't know who my cousin is and gives no details of contact. We discover the testator and sister disposed of all bequeather 'items' prior to death? Notional estate? as new will less than year of death and all items now valued at $0. For memory loss of 25 years of being a father, do you think I have valid claim for caveat? My cousin is virtually homeless and suffering mental illness as opposed by wealthy NZ family. Do I have grounds cancelling probate on will?