10 weeks seems a touch on the long side, but it depends on how long it takes for you to get the information pack together for your IVA.
If you're a homeowner then you'll have to arrange a valuation, so you're in the hands of the estate agents as to when they'll do it, you'd also have to write to your mortgage company for a current statement.
Once the pack is with your IP though, it should be no more than a week to get a proposal drawn up and agreed with you, once it's been signed then it can go to the creditors, then you've got another 3-4 weeks notice period for the meeting.
I normally tell my clients around 6-8 weeks.
Philip Beck -
www.freeivaadvice.co.uk
Licensed Insolvency Practitioner and IVA specialist