Those foster kids will count in your daycare numbers since they are not your own kids so unless they are over 10 years old you are already at your maximum with 5 kids. Not sure there is any policy that will since 5 is the legal limit in Ontario.
Always ensure that your child receives quality care by taking the time to investigate the provider and by asking for references! We simply cannot verify the claims of every daycare provider.
Updates
We expect providers to keep their listing and available openings up-to-date. However, to prevent oversights, openings expire after 45 days.