The Air Force Reserve is always looking for attorneys. I tried to set up a link that might answer some of your questions, but for some reason the site is not responding.
The first step is contacting a reserve recruiter and explaining your qualifications. (be patient this may take a while) After being accepted you will be sent to a shortened OTS course, filled with fellow attorneys and doctors. The ages of the candidates ranged from 24 to I'm guessing upper
40's. I attended OTS for dummies (pilots) so I'm not sure what the progression is from there.
Try this website for some reason it isn't working for me.
jagrecruiting.law.af.mil/