99.9% of medical schools do not accept transfers without some legitimate reason. And the funny thing is that it's not based on academics or merit. For example, to transfer to Harvard med from another medical school, it must because a spouse is currently in medical school there. Transferring medical schools is not like transferring colleges in undergrad. It's nearly impossible and usually never happens. The only time they might accept a transfer is if people in a particular medical school decide not to continue, don't make it to the next year, or some other reason for which a seat opens up. That rarely happens, and when that does, it isn't like 10 or 12 seats, maybe 1-2 max. This is what i have learned from talking to admissions and research. Please correct me if I am wrong.