Typically, the Michael G. DeGroote School of Medicine, McMaster University, does not admit students registered (currently or previously) in medical school in Canada or the United States.
Should you wish to pursue admission in this case, the Admissions Committee will require a letter outlining the extenuating circumstances guiding you to McMaster. The letter should clearly address why the move to a new and different medical school is necessary and compelling, and what is unable to be addressed at the current/previous medical school.
The Admissions Committee reserves the right to investigate and confirm the claims made in the letter. This may include contacting the current or previously attended medical school.