As stated already...No SIGNED move in inspection = No leg to stand on.
Beyond that, small finishing nails/hooks for pictures is par for the course and should absolutely be expected.
The sad thing is you'll likely have to 'fight' to get what's owing to you. And heh, don't forget he has to pay you interest on your security deposit! Wish you all the best....
http://www.servicealberta.ca/978.cfm
EDIT: As it turns out, the current interest rate is zero. So.....