As I have written elsewhere, we're seeing a rash of poor counter installations lately. You are getting good advice here. I don't understand why your counter person installed a faucet. Sure, they drill the hole(s), but normally the faucet is installed by a plumber. Also, I do not understand why any glue was in the vicinity of a faucet installation. As for the attorney threat, I wouldn't over worry it. I don't know where you are, but in most places he's have to give an attorney a couple of thousand $$ to even listen to him on a contract matter. Of course, if he has one on retainer (not likely) he probably has to sue a lot, or gets sued a lot!

Germain, Can you send me a message offline? I will send you pictures of my windows. Mine are custom wood Windows but that will give you an idea of the seals. They are not installed yet. Looking at those pictures, I see a combination of installation issues and a hack by someone. It looks like the IGU was broken and replaced. I have never seen the black plastic gasket installed like that. The third picture looks like a stationary panel and a tilt turn window but it looks wrong. The windows are installed way too close to the wall. I have seen multiple installation of European Windows and none of them look like this.

"@Najeebah, you're right, most people do work 9-5..However, I don't...I'm in the airline buisness and the granite was installed without my knowledge while I was on a trip and didn't have the luxury to communicate via laptop or cell while traveling at 40k feet...... Please re-read this: "This is not addressed to the op, who it seems was uninformed regarding being present. This is in reply to the quoted comment, in general." I posted to get "professional" opinion's and I really appreciate the one's that gave their professional and respectful opinions. Houzz is a site with pros and non-pros. There's pros with pro accounts, pros with non-pro accounts, non-pros with non-pro accounts, and non-pros with pro accounts. Take what you get. The couple "including you" that made assumptions and snarky, rude comments....Shame on you. What?? Ok. Bye

" I would attack’s it with a sponge at least to see if you can clean that up." You do that and you own the entire thing, make him clean it up better. Sooner the better as grout hardens over time. Also as alluded to above he needs to remove the grout at all chnages of plane and use 100% silicone caulk.