Public transportation is not great. However if you live in CV by the campus you’ll find pretty much everything you need within a few blocks-under a mile. Most of the stores and restaurants in the immediate area are accessible (thinking about Saint Paul between 31-33 streets). The CV Safeway and Waverly Giant are nearby as well. Accessible housing might be hard to come by, a lot of the apartments around campus are in renovated row homes. If your budget allows I’d look at newer buildings in the area. Additionally, JHU has shuttles, though I’m not sure if they’re accessible or reliable.