Grass cutting lien on home from county?

We bought our house in Osceola County Florida in 2009. The title was searched, and the title company assured me that everything was paid, and it was a clean title. For reasons I won't go in to here, we had to sell in 2010. When the title was searched for the new buyer, two things were found. One...an outstanding electric bill for 2008 over $900.00, and a fine for the county cutting the grass in the amount of $250.00. It seems the grass was too long with the previous owners, and after notifying them, they didn't cut it, and the county had to. Both liens were on the house, not on the previous owners personally, for some odd reason. In order to close, we were responsible for paying these things. The title agency's attorneys got us out of paying the electric, but the county refused to release the grass cutting fine. We didn't want to cause problems or delays for the closing, so we agreed to pay the $250.00. Now that it is over, do I have any recourse? We didn't even own the house at the time of the grass cutting problem, nor were we even living in the state of Florida! Why should we be responsible for paying the previous owners fine?? I hope someone experienced in this can advise me. One more thing, I think that the title was clean when we purchased it, but the liens took place after we closed. That is why the first title company didn't find anything. Thanks