My dad and stepmum currently have mirror wills but have talked about changing them to include a life interest trust for 33% each for me and my sibling, then the remaining 33% to my step-sibling.
Their house is currently worth approx 600k.
If my dad passes away first and they put the trusts in place, how does it work in practice? It's likely my stepmum would sell the house and move to something smaller, how does this impact on what we would each receive?
What if she outlives my dad for a long time?? What if she remarries or rewrites her will (I would not put it past my step-sibling to encourage this)? Stepmum is not very clued-up with money matters.
I don't mean this to sound entitled, just trying to understand how it all works 