I wouldn't do it, but that's just me. Don't get me wrong. I do love being a nurse, but the flexible schedule you speak of is almost unheard of now. (It is possible, but day shift, non-hospital nursing jobs take a huge pay cut, and you likely won't get a day shift position in a hospital as a new nurse; you'll be on nights.). Can you work part-time as a new nurse? Most definitely, but it will be part time nights, weekends, holidays, so even though you will be part time, you will be away from your family possibly more than you are now (don't know your schedule). If you have the option to be part time as a lawyer working days, then keep it. Don't know what area of law you work in (lawyers make vastly different salaries depending on their area), but the lowest paying lawyer job still makes what a nurse does (most of the time or close). CRNA's are, however, among the highest paid jobs in nursing.
Best of luck to you! Again, do not misunderstand my post. I love being a nurse. I work in an ICU, not a CRNA, though I guess I'm on the path to being one (you need at least 1 year of ICU experience, but usually 2-3 years of exp as an ICU nurse prior to CRNA school). Just not interested in the OR environment, etc. CRNA school will not allow much time for your family at all, and that takes 2 years, nor will nursing school, which is 1-2 years depending on the ABSN program you choose. When I have a family, I am hoping I can work part time since working full time nights 7p-7a, I barely see my husband who works days, and I'm usually pretty tired on days off from working nights.