Suing an Unlicensed contractor
We paid an installer to lay travertine floor in our kitchen and family room and it came out horrible. It is uneven and has grind marks in the stone some tiles have grout lines( which they were not supposed to have) and some don't. He agreed to work with my father and try to refinish it and never showed up again until weeks later he dropped a bill in our mailbox. We have been researching and found that he is unlicensed. What should we do about payment... pay and then sue for the price to fix it or not pay and sue? What evidence is useful?