Welcome to the forums.
If you have a 4.0/524, you probably should not apply to DO programs unless your purpose is to be in rural health in Georgia (hence Mercer, MCG, and PCOM-South GA). What were you doing for that many hours shadowing a podiatry clinic? Are you involved with an AHEC or FQHC?
Rather, it feels like you want to go for health policy. Fortunately for you, Emory is in your neighborhood, but with the gutting of the CDC, now might not be the best time to go into health policy research. What niches are you most interested in, and what clinical experiences do you seek to deepen your insight and your advocacy?
Your stated metrics likely tempt you to go big-name. While I'll give you credit for working with incarcerated and disabled people, your activities can be described as teaching/tutoring/mentoring, so they show academic competency and comfort. You need 250 hours minimum of food distribution, shelter volunteer, job/tax preparation, legal support, transportation services, or housing rehabilitation to keep up with similar high-metrics applicants.