Before you do anything find and good loan officer who will help you repair your credit. If you don't know anyone ask freinds or family who have purchased a home recently for a referral. I don't work in your area but if you can't find someone who can help you I can see if my loan officer can refer you to someone.
Michael Doyle Realtor
Simple rules for financial security: Only buy cars you can pay cash. Save up 20% for a down payment on the house. This may take a few years, but you will be better off.
You have some great advice about your car. I agree that it starts with an experienced loan office who can tell you if the refinance is even necessary. Also, ask the loan office about USDA which is a loan program for first time home buyers. This (USDA) program may enable you to buy or even build a home with less than $100.00 out of your pocket. Good luck with your first home!
Depending on your time line for purchasing a home refinancing your car may not be a bad idea, because it will bring your debt to income ratios lower. Another suggestion would be to get into a credit repair program, which would help to boost your fico scores. Please feel free to email me @ firstname.lastname@example.org