We hired a construction contractor to turn a workshop into a 'livable space.' He did a horrible job, not to code even though we told him we needed to see permits, used the cheapest material. We paid him $38000 to date, on his $37000 estimate. He wants $12000 more for what he says are 'upgrades' when he didn't do what he was hired to do right. We got quotes to fix his work totally a minimum of $20000, and bring it up to code, which he was supposed to do in the remodel, but did not. He is now threatening a lien on our home, and may have already put one on. I'd like to avoid this happening, or get it off asap if he has without paying him even more than his original estimate to do a job he did not do. Please advise! Jeri Cafesin