Jordan Jones at JDS Home Improvement, 240.388.8275. We recently had an egress window put in, although not with walk-out stairs. Ours just had a window well with ladder. It cost $6800, which included an extra $500 because our older MoCo house didn't have drain tile, so he had to build a french drain system. He.handled all the permits.
Jordan does a ton of egress windows and exuded a real expertise. We had some small issues with the cleanup/finishing work, but nothing serious. The window is great and we've had zero water issues despite some heavy rains.