Unfortunately these type of things can happen when the information getting out to people is not accurate or the person making the statement does not have all of the information. Without knowing all of the information, you are never the accepted offer until everyone's signature has been put to paper. On a Fannie Mae offer, you sign and put in an offer and then the offer goes to Fannie Mae for their acceptance. I have had listing agents call me to tell me that my buyer was the accepted offer but it is always subject to Fannie Mae sending their documents out to be signed by the buyer and then they put their signature to the contract. Until that happens and all of the paperwork that Fannie Mae needs signed is taken care of, things can always change. If Fannie Mae has thrown out all offers as you stated, you may have the opportunity to give it another try. Just know that the transaction is never fully finished until everything is recorded on the county records of the property county. f it would make you feel better, I would talk to your agent and get some clarification on what happened. Hopefully you can understand what happened.