If the house is worth £300,000 there will be inheritance tax to pay. Unless the father has extra assets which will cover the tax. Then, if the house is rented out, and each heir receives part of the rent, that rent will be taxable income. You should bear this in mind before asking for the will to be altered. The property can be registered with the Land Registry as having 3 new owners so all three will be required to sign if/when the house is to be sold. All 3 would have to sign leases, etc, if the property is to be rented out, and cannot do so unless they are in the Land Registry records as joint owners. Are the heirs all executors as well ?