Imagine this, Dad dies, solicitor draws up a deed of variation so that his half of the house goes to three children. One child dies within two years but her share of house is not declared part of her estate. All her assets pass to her husband. He dies two years later. Obviously his share of house is not declared part of his estate. All his assets go to his daughter. Mum dies six years later. Her half of house is liable to IHT but what about the 'one sixth' of the value. Is there anything to declare/pay. Should we contact the Land Registry? Attempt a DIY probate or get the solicitors involved?