The long and short, I do alot of work for this one GC. I worked for him before I went out on my own. We have known each other for a while and I do punchlist work for him. When he goes on vacation he askes me to keep his jobs running...IE I take his place and keep all the trades moving in and out of jobs. I am a carpenter, and that is what I sub for...Is it legal for me to stand in his place while he is away? I mean I am not sure my insurance would like it very much....wouldn't I then be the GC for a week or two??