Hi curlytop and welcome to the forum
I would suggest that if your debts are spread over a number of lenders that it would be better to make the offer within an IVA than try to do it individually. The main benefits are that the negotiation work is done for you, but most importantly that your creditors have to make a decision on a particular day. Once made, they cannot go back on their word or charge any more interest.
If you only have two or three creditors, then negotiating with them directly will avoid having to pay IP fees, but may take a little longer whilst you try and find a decision maker within the banks.
Find out how much your father is prepared to offer to you, and then discuss this with an insolvency practitioner directly. I do lots of these type of arrangements, and they are generally met with a favourable response from most creditors.
Make sure that your IP treats your disposable income then as a loan repayment to your father - which I am sure he will want you to do!
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