A Chapter 13 is a very good option and one I would recommend. You should seek a free consultation on that now.
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You should first check with the local tax assessor to see if you can set up a payment plan to pay off the full amount owed. They generally want the full amount of taxes owed, because if you're unable to pay them, then they don't want to allow you to keep the property if you're going to continue to accrue debts on the taxes owed. As such, it may be unlikely that they will settle for a lesser amount owed, as this will simply set a precedent for you not paying the full amount of taxes owed on the property each year.
As far as bankruptcy, you should really only consider this if this debt and other debts are large enough that you can not reasonably manage them. Otherwise, you're damaging your credit score and setting up a payment plan through the bankruptcy court that may have been possible outside of bankruptcy.
I agree with the previous answers. Meet with a bankruptcy attorney right away. Taxes may not be discharged but you will at least have your situation examined by a professional and get some peace of mind.
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