I looked into rent to own but as a homeowner. My realtor, who was also my friend, basically said that as a renter, even with a contract, the homeowner could easily "take the money and run".
Since you are looking to buy in 2 years, have you looked into NACA or Acorn? Check their websites. Also, most cities and counties have programs.
Pantene Curly Series
Care Free Curl Curl Activator: Moisture, Sealer, Styler
NOT sent from my Blackberry 10
using the CurlyNikki App...there isn't one