I am not aware of any DC law that requires a landlord to paint an apartment when it turns over. If I were you I would first check your lease to see if painting it permitted at all (many buildings/landlords ban this outright). Even if they ban painting, you could check with them and I imagine that they will permit you to paint it yourself to the “approved” color (you could reasonably ask them to provide the paint to you, the worst they can say is no). If they do allow tenants to paint, check to see what restrictions they might have (some places require you to leave it primed before you move out so it can be painted over when the next tenant moves in, for example, and if the new tenant likes the colors you chose then you don’t need to do anything). I highly doubt that they will pay for professional painters to do it for you, but I suppose it couldn’t hurt to ask. That said, I painted an apartment I was moving into because the landlord had promised to have it painted before we moved in and didn’t do it — it was fun!