Finally, there is no such thing as an oral offer! An oral offer is really just a test by the buyer to see what the seller will or will not accept. Make the buyer put the terms of the offer in writing as an intermediate step toward securing a legitimate offer.
So, I am relying on my agent to express the benefits of my offer to the seller's agent, who in turn will present the benefits of my offer to the seller. With a concise letter of intent, I am hoping to give my offers a better chance of getting accepted by the seller despite all the moving parts and unknowns.