Anything is possible, but most owners want to sell and not become landlords hoping to sell in the future. It is hard to find rent to own property because so very very few work out and the owners just get them back (actually they never loose them).
Let me ask you WHY would you want to rent to buy? I know what you will say, so you can save or improve your credit to be able to buy later. Unfortunately this seldom works out in your favor. Credit is not easy to improve quickly and if you have a problem in the next year it can make it worse. The down side is that you will agree on what you will pay the owner in a year and place a deposit down. Then each month you will pay an extra $100 or $200 on top of the rent, this extra option fee is saved by the owner and added to your down payment when you buy the house. If you don't buy it when you agreed to, then you loose all the money and deposit the owner has collected. It's an awful deal for most renters because they don't go through. To make things worse, home values are dropping so in a year the bank might not even loan you the money to buy if they think the house is not worth what you agree on today and you loose the money.
Rent - save and improve your credit and then buy when you can. Stay away from rent to own.