UPDATE 25/09/21: Adoptions are allowed! (excluding generation 1) I realise no adoptions wasn't a very inclusive rule and have removed it to be more inclusive! Rules No Cheats No Mods that can...
I think I am going to move my gen 2 heir out once she has earnt enough money for the house I want and then have that be the house for future generations. Then I am going to move all of the old heirs to the original house once they are elders.