Let's look at the investment property first
Rent|€8,400| 12 x €700
Interest paid|€7,000|€200k @3.5%
Other costs| €2,000| just a guess
Income Tax| €500|
loss|€1,000
The best you could expect would be for ptsb to switch it to interst only for the long term. Even at that, it will cost €1,000 a year. It would have to double in value to recover the negative equity.
This is a big loser and needs to be got rid of.
Even if all the lenders, other than the home loan, agreed to write off their debts...
He would end up with a home worth €150k and a mortgage of €200k.
He has the income to pay the interest on €200k which would be €9,000 a year. But he won't have the income to repay the capital, ever.
I think that UK bankruptcy is the best option ...
Given his age, I would wait until the new legislation comes into force.
I would put a PIA to the creditors as favourable as possible, but I doubt if they would accept it.
If they don't, then give back the keys and go to the UK.
In the meantime...
Enter into discussions with ptsb about an orderly sale of the property. If they agree, then ptsb will have €100k of unsecured creditors and the rest will add up to €32k. If ptsb agree to a deal, he will be able to impose it on the others.
Bank of Scotland want to leave Ireland. They might well do a deal on selling the property and writing off the shortfall.
If he can convert his secured loans to unsecured loans, he might get a favourable Debt Settlement Arrangement.
He could be back to Square 1 - no liabilities and no assets this time next year.