I purchased some land from an aunt w/o title search and now find that it has several liens on it. What now?

I purchased a parcel of land from my aunt & uncle and didn't do a title search after she assured me that it wasn't necessary. (I know.... Stupid me!!) The purchase agreement and the contract signed at the closing both said that she was selling this property free of any encumberances, unpaid taxes, etc.... Now I find that there are several liens on the property. So I guess my own aunt lied to me. What courses of action do I have now?