The listing Realtor can certainly ask the Seller(s) that question, but do you realize that your monthly mortgage payment on this property could be less than $350/month on a 30-year loan? Less than $475/month on a 15-yr loan? Not bad for a 2100+ sqft house with garage and yard... I don't know your situation or credit history, but have you considered simply buying this property or one like it? It might be just as good as rent-to-own and start building your equity immediately. It will also give you a (small) deduction at tax time.
Good luck and happy house hunting!