What to start a legal eikawa business

[sdskinner]

I know that many of us have Eikawas and we just teach out of our house a rented room or whatever. And that we really have no official business or registered school name.

But what do you need to make yourself legal. What and where do you register your business? What does it cost? I know there are various types of businesses you can set up. What do you need to do if you are the sole proprietor and only teacher? Or you have a few teachers working for you?

And one more question. If one were to set up a real legal eikawa could you then do some dispatching to schools. Either to elementary schools or to junior high schools. Is it difficult or costly to get a dispatching license?

I know to many questions but thanks in advance for any replies.
Japanguy