One thing to be cognizant of is for people in DC people outside of it don't exist socially. It is a rough area to be in when new if you move to the suburbs first. It is better to move to the city first. Despite what some people in Arlington may think. I found Arlington one of the most isolating places to be at first. Most people inside DC will not go into Arlington. While Arlington may think it is close, it's close to downtown and Georgetown, but most people in DC don't spend much time in Georgetown and most of downtown is offices.

Now mind you once you have been here for awhile and social circles are relatively secure the suburbs are okay. But it is I'll advised for someone new. The suburbs are for people with kids mostly. Trust me being able to walk home or take a short metro ride is a benefit.