Once you have found your style and put together your portfolio you might be considering signing with an agent. Listed are some of the agents in Toronto that you can check out on the net.
You will read all sorts of numbers thrown out there that should be in your portfolio or book. Some of the numbers are stating 20 and 30+ images. I would agree that if you were an established international star of modelling then this is probably the number you should have. However this is not where anyone starts.
Start with the fundamental 7 and constantly build and edit.