There have been numerous class action lawsuits against Countrywide, covering everything from federal securities fraud to consumer fraud. Your question does not provide enough information to determine which class action relates to your particular situation. You should contact a class action lawyer to discuss your circumstances and determine whether you are a member of a class that is already in litigation.
There is a wave of new cases that are being brought on behalf of people who lost their homes due to flawed foreclosure proceedings based on false affidavits. However, without more information I have no way of knowing whether that is your situation.
Finally, you should contact your local legal aid office for assistance in the fighting the foreclosure sale.
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Disclaimer: My answer provides information about the law based on the limited information provided in the questions asked and is not intended to provide legal advice or opinions, and does not constitute an attorney-client relationship. The law differs in each jurisdiction and may be interpreted or applied differently depending on the jurisdiction or situation. Accordingly, I highly recommend that you consult with an attorney to discuss the details of your problem so you can get legal advice tailored to your particular circumstances.