I have a friend from Brazil who has been living in Ireland for the last 20 years.
He bought a house in Ireland in 2006 which is now suffering, along with the rest of his estate from pyrite. Homebond will not pay. House insurance will not pay. He was in negative equity anyway, and now with the pyrite its worthless as it cant even be sold at a loss.
He has invested in property among other things in Brazil over the years, so he has nothing apart from the house in Ireland now.
So his plan now is that he will just leave the house some day in the next few months and go home to Brazil and make a life for himself there. He reckons he can life like a king on what he has squirreled away there over the years.
He wont even tell the bank when he goes. One day they will just realize that the house is now theirs.
So they might chase him, but i doubt they'll get very far.