Any shot with an undergrad 3.0?

So, I was a big fish in a small pond in high school. Tons of scholarships, great test scores, but college really overwhelmed me. The summer after my freshman year I was diagnosed with depression and ADD. (Please don't turn this topic into a referendum on ADD; it's not really related to my question.) After freshman year my grades shot up; then my senior year, I had major problems with my depression and was too lazy/stubborn to get them dealt with, which led to a couple more terrible semesters and a couple of failed courses.

When my mental health is stable (which it is now, and I learned my lesson about letting it get out of control) I'm a superb student, but I still came out of it with a 3.08 undergraduate GPA from a poor-to-middling state university. The problems freshman year are all documented by doctors, but seeing as the problem senior year was caused by NOT going to the doctor, I don't have any documentable explanation for that.

Is there any chance of me getting into a decent MSA/MAcc program with that score? I haven't taken the GMAT yet, but if prior scores on standardized tests are any indication, I can expect a good one (31 ACT/1380 SAT with little to no study for either). The one that I really wanted, U of Toronto, requires a B+ average in your senior year, so that one's right out of the question; I'd like a school in Canada, for future immigration purposes, but that's secondary to getting the degree.

Completely doable. Admissions consider your GPA to assess your academic ability to succeed in their program. If you have a low GPA, they will consider your GMAT and other experiences, which means that a high GMAT score is necessary if you are aiming at higher ranked programs.

Once they think you do have the academic potential, it's all about your essays and other experiences.

Good luck!