I am going to paint a small bathroom w/shower and the paint that is on the
walls now will come off if washed. Since I haven't painted walls before I
have some questions.

1- Should I put a primer on the wall after washing them?
2- What type of paint? Flat, gloss, semi gloss? etc, etc?
3- As I have Multiple Sclerosis (Always looking to save my energy), is there
truly any such thing as a one coat paint?

Any suggestions welcomed.

Thanks
Stone