Bad Credit Mortgage Rates

Can I refinance a Mortgage With Bad Credit?
I have been in the house 8 years and have a rate of 7 for 30 years. I have bad credit and wonder if it would benefit me to refinance to a lower rate?
See http://www.esuperfind.com/lowermybills.phpp?id=hra0tt16koo9 the actual firm is an Experian company BBB approved so very safe.
They might or they might not. It depends on many factors and how big the debt is.
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