I was diagnosed after my first time in law school. It went undiagnosed my entire life, after the dismissal I knew something was wrong. I always did ok in school, but made a lot of careless mistakes, no teacher bothered to think that was a problem. So, since the diagnosis I've been on meds and have been taught techniques to focus when studying.
I'm not looking at a part-time program in terms of the work being easier. My focus is to get my foot in the door and prove myself then.