Yes, the balance is currently €640k. ( A neighbour's house is currently for sale for €945k)
I think that the other executor wants this sold as quickly as possible to preserve whatever equity is left.
It's an odd one. If they lent 45% of the value of the home, then with accumulated interest, it's possible that it did go into negative equity.
The delay has probably suited everyone. Because house prices have been rising faster than the interest rate in the past few years. The trespasser got a house to live in. The bank will get their money and the accumulated interest back. And the other executor (and beneficiary) now will get some equity.
Brendan