I signed a contract to have my roof replaced by a contractor. 2 weeks later, insurance added the siding to the claim. I told the contractor that I will replace the siding. He got angry and said that he was entitled to the entire claim. I have signed nothing regarding the siding. There is fine print on the back of the contract saying that if I cancel then I will owe the contractor 25% of the claim, which was about $8,000 at the time for the roof. I am still awarding him the roof job but he is refusing to do it unless he gets the siding as well. So, is sent an intent to file lien for 25% of the entire $22,000 claim, about $5700. Do I actually owe him this?