Law School With The Fewest Female Faculty Members?
I don't have time to do an in-depth study, but the George Mason School of Law has to be a contender. Looks to me like only two tenured or tenure-track women (one of each, it appears) are currently teaching there full time.
The visitors and adjuncts are pretty heavily male too. Very surprising, given the pool of available talent in the DC area, where the school is located.