I don't know anyone who will be in next year's first year class, but I sat in on a first year property class the day before my interview and there were about 5 or so women who looked older than I was, and two people who had brought their school-age children with them, as it was March break.
I have a work acquaintance whose wife is currently in 2nd or 3rd year, and she, I would say, 10 years older than you. I could see about getting you in touch with her if you would like. Also, there is a mature students' association at Osgoode who might be helpful...and I bet if you just checked out a class, as I did, you could chat to those folks who you think about your age.
I'm in Quebec City right now, but will be back in Toronto in May, so if you wanted to meet downtown for a coffee or something, drop me an email at girlpublisher at hotmail.