In my opinion, most properties that are marketed as "rent to own" are trying to take advantage of unsophisticated buyers/tenants and sellers/landlords. RTO is hyped to would be real estate investors as a type of "get rich quick" scheme and to potential homeowners as a way to overcome credit problems. Rent to own transactions done by a legitimate Realtor are leases with an option to purchase and are three contracts: the lease, the option, and the purchase agreement. You should look for a Realtor familiar with leases with option to purchase transactions. If both parties are represented by Realtors then it is probably legit, otherwise I would advise extreme caution and due diligence!