We are (hoping to be) at the end of our remodeling, frankly I'm getting weary of trying to keep a step ahead of contractors.

I hired a tile floor guy to do two very small rooms in MARBLE (powder and laundry).

What should be my reasonable expectation in a finished room ?

....Should the tiles be clean of film when he is finished? .....How perfectly should the tiles line up and be level with each other? .....Is sealing the grout usually done by the tiler?.... What would you do if there are very small scratches in the marble probably due to installation?

Thanks