I'm disabled/elderly. At this point I use a walker as I labor to extract a scooter/motorized chair from Medicare.

I can verify through experience verything Animanalmanac says in this thread--the sidewalks are particularly egregious. You can start across the street and then go for blocks in the gutter looking for a way back up. Ditto the ramps on buses. They'll leave you standing forever. Wheelchair/handicapped seating on buses is unevenly enforced when it's enforced at all. The Mobility buses are easy to sign up for and reasonably priced. They do have scheduling issues and no-shows, and there are times (like Sunday morning church time) when you'll wait hours.

I don't want to make it sound too forbidding. I honestly don't think it's any worse here than it is in any other city. The only thing I could add is do call ahead when going to restaurants, etc. Not all of them are accessible. Life here when you're disabled can be aggravating, but it's not some huge, miserable albatross hanging around your neck and making life miserable. Just a series of irritations.

I should add: You have to sign up for Mobility, but they actually send a car and driver to bring you downtown for your in-person interview.

Welcome to Baltimore, and I wish you success during your time at Hopkins.