What kind of recourse do I have in this situation? Am I stuck paying this or can I legally take them to court?

I bought a newly developed house back in late 2012. My property tax for the last 3 yrs was pretty reasonable, but this year one of the special assessment cfd's jumped from $1071 (2014) to 2320 (2015). Also, I was told its going to jump again next year. I called the cfd toll free and they told me the only way to get out of it is if that I did not sign a notice of tax lien with the title company which is suppose to be required by law. I searched all my files and was unable to find the notice. I called the title company and they referred me to the builder for they told me since its a new development I should have signed it with the builder. When I called the builder, they too don't have a copy of signed lien document. They did provide me an unsigned copy of what I should have signed which is called a property disclosure report. This report shows a breakdown of assessments I would be paying and the expected amount. However, I do not recall signing this, hence why both myself and the builder don't have copies. When I purchased the home I was aware there was a melo roos, but did not expect it will rise over 100% in a year like it did.