Coldwell Banker Advantage of Overland Park, Ks, the broker of the firm (Karen Bergin), and their agent (Linda Bobski) failed to sell my home and then filed an illegal document to cloud the title of my home, thus making the property unmarketable indefinitely. Their tactics are nothing more than extortion because they know it is cheaper to pay them what they demand than it is to fight them in court. Their real estate licenses should be revoked and they should be banned from practicing in Missouri due to their illegal and unethical actions.