Only if its revealed upfront on the sellers disclosure or if the home is distressed and its marketed that way than...... yes you have knowledge.
But ..... if you as a buyer.... discover through your Title Search..... than you as the buyer can have the Seller pay back taxes or consider the Agreement of Sale Null and Void and your deposit monies should be returned to you promptly. Its important for you (or your Agent) to keep your agreement within the timing of the essence so... your not in a default status.
I hope this helps you?
All the Best John Curci RE/MAX 1866-473-6290