Do Law and Medical schools look at all 4 years of college grades or just the Last 2-3 ?

I really really messed up my first year at University by failing some courses and getting a few bad grades, it was so bad that I was asked to withdraw in my first year. But after taking a few community college courses and getting A+ in them, I was allowed back into my University and consequently proved myself with getting A- and A+ in all my courses, even though I was in academic probation for 1 year. Now I am in third year, my GPA is a 3.5 and I am wondering if that massive slip up I had my freshman year is going to haunt me when I apply to medical or law school next year? Will I be rejected flat out? Fellow academics and students feel free to add any and all input.

PS – I am a Canadian University of Toronto student looking to apply in the United States for professional school as well.

the fact that your grades got waay better is what's most important to them. in an interview they'll probably ask you about what happened that first year so be prepared also you may need to explain it in your personal statement. plus they're also more interested in upper level harder classes than core classes so because you got your act together I think it'll be fine