Do you live in a community with other law students?
If not, how easy is it to socialize when your only mode of transportation is the train (I'm assuming that you don't have a car. I could be wrong)
How is living in DC?
I don't live in a community with other law students. There's only one law school dorm at GW - the Aston and it only has studio singles. I'm married so that wasn't an option for me anyways. I know some people who live there and like it, but oftentimes, they describe how they can "never get away" from the law school environment. On the other hand, I'm sure it's convenient to have classmates on hand next door. Funny enough, with 500 1L's at GW you invariably end up living in the same apartment buildings as other law students. Someone in my section lives in my apartment building in Arlington, and I know other people live within walking distance of my apartment too. There's one building around McPherson Square that FOUR 1L's ended up living in, and they threw a couple parties on their rooftop this semester.
It's SO easy to socialize with other law students when you don't live in a building with law students, or if you don't have a car. My husband and I do have a car, but mainly he uses it for work and I stick to public transit. The car is mainly used for him to commute to work. Anyways, the social events in law school are mainly bar review, which at GW is *every* Thursday, and the post-midterm and post-finals bar events. I'm also in a couple student groups which was a great place to meet people. I invited people over to my place a couple times, and it was easy to get to given my proximity to the Metro. The key is to just live within close proximity to a metro station (in a safe area) and it will be easy for you to just hop on the metro whenever you like.
I live in Arlington, on the orange line, and I really really love Arlington. While I'm sure DC is great, I live in an area with plenty of restaurants, a movie theater, and a library which I hit up for free movies all the time. There is something to say for choosing to live in Arlington, though I wouldn't recommend living further out than Ballston. That's when it starts getting more suburban. The Rosslyn-Ballston corridor is quite urban. And since Foggy Bottom is on the orange line, living in Rosslyn or Courthouse, only 1-2 stops away from Foggy Bottom, is, I think, a lot more convenient to commute to school than if you live on Capitol Hill (you have to go through more stops) or Adams Morgan (where you'd have to change lines).