Do you mean, 'how long will it take to fill my spots?' I've always heard that it can take up to 1.5 years to fill 5 spots. It took me 6 months to find my first child but was much faster for the rest.

You cannot have more than 5 children under the age of 10, not including your own children. Therefore, if you have 5 two year olds then you cannot have school age children in the home at the same time. You can have more than 5 clients...but they cannot overlap. For example, at one point I had 7 clients. However, 3 were part time and I as a result I never had more than 5 at once (not including my own).

ETA: No, you do not have to notify the city.