A law school admission is a law school admission. You are not going to be penialized for starting law school in an "off semester." The only problems I foresee, is regarding if you ever wanted to transfer out of your school to another law school. If you needed to transfer out, you would have to stay at your school for 3 semesters as opposed to 2 like other law students (of course each school is different, but as long as you hit the minimum number of hours, transferring shouldnt be a problem, you may just lose a few credit hours). As far as employment prospects, I would call the school and ask. The employment practices of law firms has a methodology and there are rules all abide by (remember they are lawyers). I am sure there are disadvantages at getting an internship and eventual job when not that many students are applying, but many law firms may not hire or have law students work in their firms at that time. Other than that, there are no real problems with going to law school during an off peak.