seller backing out

hello, we put a bid on a bankruptcy house in Avon Park Florida in march of this year. the bid was accepted. ten percent was put down. then the title search has a mistake of saying it was block I instead of block 1. so the title company amended it. then the bank that owned it said they had to redo the bankruptcy all over again. we have extended the contract twice. now our Realtor says they might take it off the market all together. our Realtor is in the same office as the lister. we will be devastated! we are from minnesota. we were told that we would close soon so many times that we stayed in florida for another month in a half. we purchased furniture and have it in storage in florida. it cost us alot of money to stay longer and the cost of furniture and storage. finally we talked to the realtor and they told us we could close on the house via sending us the papers so we left. then when we got home we sold out camper so we could have money to fix the house up. it is a house that needs alot of work, but we r willing to do it. so can they back out of the deal? we never hear from our realtor but when we call she always says oh i jut heard something today. please help...thanks , jill oneil