Hi there
If you have no disposable income, then there is no money for the OR to assess an Income Payments Order on, so unlikely that you will have to pay anything.
If you have negative equity in the property, get your wife you make an offer of £1 to the Official Receiver to acquire your beneficial interest. This will protect you both if property prices rise in the future. Your wife will have to cover the legal costs incurred by the Trustee, but this should be no more than £300 and of course you will need to maintain payment to the mortgage and secured loan.
It doesn't matter who buys out the interest, but obviously pick someone you can trust.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk