No property was indicated, so there is no way for us to know which property you are interested in. Truthfully, your best outcome will not come from making an offer on a site like this, but by having an agent represent you and put your offer in writing. It's easier to say no to a verbal offer than to see a set of terms placed in front of a seller and have someone present reasons why it may make sense. There are no guarantees of success with a written offer, but your chances go up.
If you need a referral to a local agent to present your offer, let me or another agent who answers this question know. We may be able to put you in touch with a good, helpful agent in further improve you chances on the home you inquired about or another one they find for you.