I am an HVAC contractor and was a sub on a project for a gc. The original proposal was signed by both parties and in the proposal it says "half of proposed cost is to be paid prior to any work" as all my proposals mentions this.. So I considered since the gc was actually a "so called friend" of mine before I got my S-350 license, I didn't see any red flags with staring the work when he asked me to and he'll get the half paid in 1 week. after week 3 he paid me $2,500 which half was supposed to be $4450. I began the job in September of this year and completed in November. the job was on the mountain and I did it all by myself so that's what explains the long duration it took me and all parties were aware and its even written down on the invoice. I am being force to file a lien on property and I happen to reach out to the homeowner and the homeowner tells me that he paid the gc and that gc shouldn't have any excuses about why he cant pay me. so I contact the gc and the gc says he has not got paid yet. he also told me to F*%@# off and that he will pay me when he wants to.. I feel I have a case here? thank you so much for your time!