it will be irresponsible for me to give you a recommendation. You have to look at your obligation such as, do you have a short-term loan? Rates will increase anytime soon? Are you running positive or negative on your rental property?
"Lease to own" usually indicates an obligation from landlord to sell property at certain price at certain period of time. Yet, to tenants they have right not to purchase. Therefore it is an option for both sides but I don't see how you benefit from it tremendously...