Most Canadian schools place a huge emphasis on ugrad grades (sometimes even more than the LSAT). I would call the schools to find out how they would consider you. I suggest applying as a "mature" applicant so that they consider your graduate and work experiences.
As a regular applicant, I think your chances are:
1) University of British Columbia- low- because they take all of your ugrad grades and drop only 5 of your worst grades
2) University of Victoria & Toronto- low- because they are the hardest schools to get into in Canada (require both a GPA > 3.3 and a LSAT > mid 160s
3) University of Alberta- high- because they look at your two most recent years in school (including grad school); I am assuming that you took many courses in your masters degree
4) University of Calgary & Windsor- medium- because they are very unpredictable; they can reject a candidate with a hi gpa/lsat and accept candidates with low gpa/lsat provided that they have diverse experiences in their application
5) University of Manitoba - medium - they drop your 10 worst half coures (5 full courses) if you have a degree so if you do well on your LSAT, you have good chance
6) Osgoode Hall - low- because they are very gpa heavy. In fact, the LSAT is only counted as one year of school. Therefore, if you have 6 years of school, your gpa will count 5/6 and LSAT will count 1/6.
7) Western/Queens- medium to low because they will take your two best ugrad years (I think) but I think your two best ugrad years should be > 3.5
Ottawa - I really don't know. They consider factors such as ethnicity, sexual orientation, etc. so they are fairly unpredictable.
The above is only my opinion. I suggest calling the schools yourself to get a "real answer".
Good luck with your applications; I am sure everything will work out for you.