If the owner decided to cut your price after the job was complete, I am sure that you would seek legal recourse. If you and the EC come to a mutual agreement about this job that would be fine, but if you were to unilaterally adjust my invoice after the fact, a mechanics lien would be filed. You did not have the stones to give the EC a call and a heads up about what was happening. What is it with the term "general" that causes people to decide that they are the judge and jury and are therefore able to make the rules as they go along??? If you choose not to use this EC in the future, then you should call him and tell him why. He may see your point and adjust your bill. If you don't choose this route, I asure you that he will have no problem in replacing a customer of your caliber. If I find a "general" that is prompt pay, he has my attention and knows that all it takes is a call to have it done his way. The registered lien letters have not failed to produce checks from the other ones that think like you.