belle1. You and other posters are not going to be very happy with my post but anyway I will state my position.
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I don't dislike your post and you're right to say what you did but Belle is not a won't pay, she's a can't pay. And that's a very important distinction.
There is no point staying indefinitely on the dole paying the bank sums that can never hope to repay a mortgage. What more do you think Belle could do?
She has the option of a new county, a new life and hope for her child. She cannot go abroad without any money so in those circumstances taking a few months rent, particularly where there is a child involved well I don't see how that can be wrong.
There is no tax on rental income under the rent a room scheme, so I don't think there is any liability there. From the way Belle posted I'm assuming the tenant's are in her home - not sure why she mentioned PRTB though.
If she leaves it will cost the state ie taxpayers less as there will now be a saving of dole for 3 people.
Belle, just write to the bank and tell them your mortgage is unsustainable and ask them to take it back. Banks are doing deals, you never know what they might come back with.
In order to help other people like you it would be great if you can tell us how your dealings with the bank goes and also your move, emotions costs and experience.