Our contractor did a poor quality job with items left unfinished, or damaged. We have offered him the options of coming back to finish the work properly or to accept a lower final payment based off of the out of pocket expenses we will incur for the repair/finish of the work. He is now saying he’ll file a lien on our home. We do not have a contract and the original agreed upon price was $3793 and we offered him $3100 to settle. It was our understanding that at that price he’d need a contract for the mechanics lien to be valid in Colorado. Is this correct? We need the exact statute and also the process for contesting the lien. Thanks,