This is an older question from 2013, as of now, March 2014, the Denver Real Estate market is HOT, with Supply and Demand economics in full force. It is a Seller's market. Many Landlords are not renewing leases but opting to capitalize on the market conditions, to sell. If you do find a Rent to own property, please be sure to have a Real Estate Attorney draft the contract for you.
I am a Realtor in Littleton, if you need expertise with buying a home, please give me a call.
Cheers, Jan Baer, Realtor Broker Owner BAER Realty, Jan@BAERrealty.com