I recent had some tile replace and base board installed in my home. The person I hired was not a licensed contractor but said he does this type of work and sent photos. He completed the tile work but workmanship is not great and is likely to fail in the near further. As for the baseboard he failed to finish and walked off the job because of a disagreement about the tile quality. He is now demanding payment but I am reluctant due to having to finish the baseboard and the quality of all work that was completed. What are my rights in this case?