Is it up to code to attach a coach lamp fixture bar directly to a concrete wall?
No.
Is it ok to add an additional receptacle from the dedicated 20 amp line for a laundry receptacle in the same room?
Yes.
Is it ok to not install a light and GFCI receptacle for 7.5 ton rooftop A/C condensor?
The NEC requires a receptacle outlet withing 25' and on the same level as the unit.
The NEC does not require a light for a RTU.
Is it ok to ignore manufacturers specs for a kitchen hood fan/ light that requires an individual 20 amp branch circuit and feed it from the microwave oven circuit?
I doubt that any hood fan /light actually requires a 20 amp individual branch circuit.
But you have missed the point.
The point is
you are responsible for what
you do.
If this person continually asks you to perform work that you feel is wrong than it is up to you to either quit or stay and do whats asked of you.
How they run their business is none of your business.
Good luck, no one is giving you a hard time for wanting to do nice work and no one is siding with your boss.
