Having the legal staff and having the upper management from another country able to understand it at a conceptual level and integrate it into their decision making process is entirely different. One of my friend is a lawyer in France who specialises in helping US corporation handle their subsidiaries here. There’s not a week that passes without him being asked how to do something illegal here but legal in the US and the client being baffled and literally refusing to understand that they can’t.
The main one being firing people, from the way he talks about it, he seems to be earning half his income re-explaining to the same people over and over that no you can’t just give 2 weeks notice and fire people at will just because you need a quick expense reduction before the end of the quarter to amuse the shareholders. It just doesn’t register.