If you leave the house to one person, and the remaining assets to another, just don't forget about Inheritance tax. If the estate is liable for inheritance tax, the tax will be taken from the assets left after the house becomes the property of the first legatee. You could word the will so that the (two ?) heirs have to share payment of any tax due. But if you are not sure whether what you write is going to end up as what you want, first try the CAB, then a solicitor.