Information on a business visa

I wish to establish a business in China, I have been here for over 10 years, am married to a Chinese woman and have been for 7 years.  I have taught and coached basketball both in Hong Kong and in Mainland as well as taught at University and High Schools.  I hold a PhD a.b.d.
My main question is how to obtain a business visa, I have had several answers on this subject however, they all vary in regards to cost and steps to take.  I would appreciate hearing from anyone that has a business visa.  Thanks Laurence

Business visa not a work visa?

Pm me some more background info and I will check with some visa agents I know

Hey Manlin, thanks for your quick reply.  I am too old to get a work visa here in China.  My job is to be the face for my new English school.  My wife will run it and I will try to find accredited teachers to teach it.  We have commitments for 80 plus students to attend in September so I need this information quick..Thanks again Laurence

Please pm me some more info including your email address.

As I said I will ask a couple of different visa guys to reply to you.

That way you can compare their prices and  service

My email is [email protected] Manlin..