It may not be as bad as you think and there may be ways to help or repair your credit score.
Rent-to-own will commit you to a very small number of properties if not only a couple. When you're looking to own a home, you will likely want a selection of properties.
You will need a large down payment on the property and there are risks.
Please contact me anytime to talk about your situation and to see how far away you are from buying a home. I'm always available to help.
RE/MAX NE Ohio
http://www.trulia.com (Rentals Section)
http://www.zillow.com (Rentals Section)
http://www.realtor.com (Rentals Section)
Between all of those, you will get a very clear picture if you can find what you are looking for. Good luck!