I've found the answer to question one myself, a degrees not required if you have good enough experience in the field you are getting sponsored for.

Still can't find anything on the second point, so any pointers much appreciated.

Hi, I have a couple of questions regarding getting an H1B visa. Firstly, it says on the immigration site you need a degree. I don't have a degree but have worked in the industry for nearly 30 years and at a high level for around 20 of those, I work in IT and I am currently CTO at a mid size company ...