Great job on the re-take! Your chances of acceptance have definitely gone up, and I’d say that I’d be quite shocked if you DIDN’T get in.
As far as other schools, have you looked into American University in D.C.? It’s still in D.C. like GW but isn’t an urban campus. It’s also close to jobs and will have some of the same access to internships in the area (very important for your intended field of study.)