None of the other posts have addressed the fact you mentioned wanting to be a medical examiner. I assume you mean in the forensic pathology sense. The qualifications you need to be a medical examiner vary. Some states you don't even need a medical degree. In others you just need a medical degree, but no residency. In states with the highest requirements you would need to have done a fellowship in forensic pathology and the typical path toward that is doing a residency in anatomical pathology first. Not saying that AP residency can't have it's busy times, but the hours in path residencies are usually substantially better than most other residencies.