New Zealand Law
Have New Zealand Law Questions? Ask a Lawyer Online.
The only way you could intervene is if she lacks legal capacity to make a decision, because of dementia or other impairment. If that was the case then you could get a property manager appointed. If she is of sound mind, but you consider she has been subject to undue influence of considerable strength, you would need to intervene. But you would need to make an application to court.