Law School Discussion

If you get acceptance in one school will it automatically override the rest?

Hi everyone, i recently got accepted into university of calgary  :), however i applied to a number of other school's and i'd really like to go to a school in Ontario.  ??? My problem is that in the letter i received it said that my acceptance would be sent to the other school's i applied to and i was wondering if i should play it safe and accept at Calgary or decline acceptance and hope i get in another school?  :-\
If anyone can help me i'd greatly appreciate it. Thanks.