OK, I am curious - if you have money for a deposit - why not buy now?
If it's due to poor credit/low income....then rethink this idea of "rent with an option to own", as you may very well be risking your hard earned deposit money.
You see, in a traditional rent /w option to buy deal, the upfront, or deposit money, is NON-refundable if the tenant does not, or cannot, complete the purchse for any reason!
Most sellers who want to sell, sell now, not a year or 2 from now..........that's why your selectionl of homes will be very limited.
Sellers who opt for this arrangement, may be in financial stress themselves - maybe they owe more than the house is worth, so they cannot sell in today's market......or their expectations are unrealistic.
There are a lot of potential dangers for the buyer in this type of arrangement...........and contrary to what you may think, all of the rent is NOT credited to the purchase (in most of these kind of deals)......only an amount over and above the normal rent would be credited...........or FORFEITED if the sale doesn't proceed.
Make sure you fully understand what you might be getting into.
If you're not financially able to buy now - I suggest you work on that first, then buy when you're able to do so.