The Alberta new home warranty site gives you a list of all the things you should be looking for. The list is long but I recommend going through it and marking down all the things that are only under warranty at the time of possession.
Warped shingles, scratched walls, marks in baseboard, stains on counter, slivers in handrail etc....
The page takes a minute to open but worth the wait
http://www.anhwp.com/hbTemplates/Wor...eTemplate.aspx