debt after death

[mrsseed]

My FIL died at weekend, we haven't seen him for years. FIL & MIL separated 15 years ago, MIL bought FIL out of house, but they were never actually divorced (only found out recently!) FIL met and moved in with new girlfriend. Because technically they are still married do any debts defer somehow to MIL? These would be in FIL name only.
We don't know that there are any and but this is getting a bit weird and trying to be prepared.(condolences not required! We are just trying to help the girlfriend sort out stuff and obviously protect MIL)
Thankyou

Any debts would be taken out of his estate, so as long as he isn't still named on any of her assets then no. If he has debts and no assets (including life insurance, property etc) then the debts are written off, they can't be passed on to any next of kin.

Thank you, thats reassuring.