Can you sue? That is a question for an attorney. As real estate agents we aren't licensed to give legal advice.
As a side note, not sure what your mls is like but mine has this advisory for all listings:
"All measurements and all calculations of area are approximate. Information provided by Seller/Other sources, not verified by Broker. All interested persons should independently verify accuracy of information. Provided properties may or may not be listed by the office/agent presenting the information."