I will be doing the same thing in 4 years time. So far i have learnt that schools can only offer a J1 and MI visa. Which is for educational courses and student exchange programme. if you want to work as an instructor I think you will need a J1 visa which is for 18 months nad a 6 month extention. After this period you must go home to the UK and not return for two years ( i think). If you want to stay out there permanently you will need a H1B visa for graduate professionals, but your degree must relate to your job, or ivest $100,000 dollars in a business and employ a couple of Americans. I asked this immigration Lawyer can I invest in flying school and he says that is fine. My wife will be a registered nurse which is a Preferred Shedule A occupation ( nurses in short supply in Florida) and with sponsorship from a Florida hospital she will get a green card and with that I and my children under the age of 21 will be able to work. Yes nearly forgot the M1 and J1 Visa do not allow your wife to work. I recommend that she trains to be a nurse.