Refinance Home to obtain lower fixed interest rate.
Unfortunately Bob I must echo the sentiments of the other posts. The best thing you can do at this point and time is contact your current lender and look into modifying your current loan. David Feathers, avelloe.com

I'm thinking of buying a home (1st time). Is a DTI ratio of 17/32 good enough to ask for a loan and get pre-approved?
I would have to echo the sentiments of my fellows here that the debt ratios are in line for all types of financing. Your credit will have to be reviewed to make sure that minimum credit and FICO score requirements are met but the DTI sounds fine. You definitely need to speak with a local mortgage...