Hi Graham,

Thanks for the detailed summary of your situation.

Nothing you have said is impossible, although we often say on here that it will come down to the finer details. I have summarised the first questions any broker should be asking and information for you to consider

If not already done you will require a copy of your credit file in order to assess the details of the adverse credit recorded. The dates, values and if defaulted or concurrent missed payments make a significant contribution on lender selection.
It is imperative that the DMP has been well conducted and almost every lender will want confirmation via Stepchange to this effect.
The rental valuation of your property you propose to let will be critical to your borrowing power as many lenders have many different income yield measurements for affordability purposes.
The reason for the adverse credit and requirement for a DMP and second charge borrowing (which typically implies previous debt consolidation)
Lastly and I suspect most importantly will be how you derive your self employed income. Ability to repay historic debts will not be factored into your the lender affordability model and all will want evidence of self employed incomes. Once again here lenders all have their own criteria here and in these situations lenders almost always want your personal and business bank statements to verify the income to the HMRC declarations. (Tax Computations) Some lenders will take net profit but this comes down to the finer details of the company and company ownership structure.

With this in mind it would be prudent to locate an experienced mortgage broker I imagine..

Best of luck

Most welcome,

It is difficult to answer this objectively because obviously this is all we do and therefore an easy answer is to call me/us.

In more general terms all Mortgage Brokers should be regulated and therefore genuine review sites such as Feefo, Trustpilot and Reviews IO are likely to provide you some decent reassurance.

All the best