I am not in Toronto, but Ottawa, but I just opened my daycare in March and I filled all three spots I wanted to fill within about 2 months and have had lots of people I turned away. I started before my mat leave ended to avoid having no income in case it did take awhile. If you are on mat leave, I would highly recommend starting interviews at least 2-3 months before it will end if possbile. It all depends on supply and demand in your area...plus lots of advertising. I made a website, business cards, told everyone I knew, posted on Kijiji every day as well as Daycare Bear and some other sites.