Yes, listing agents have to present all offers to the SELLER. The seller then, if there were multiple offers, accepts one, usually the one that shows the highest return for the banks. That one accepted offer is submitted to the bank. The bank/leanholder is only working with one offer, on which they will base the short sale approval. The rest of the offersstays with the listing agent and are labeled as back up offer #1, 2, 3, and so on. At least this how some of the listing agents here in Tracy, Ca are handling the short sales. Bottom line is that the seller can only accept one offer. I hope this helped a bit.