In AB there aren't super clear cut as to how many kids a private day home can have, though I believe she would require a child care licence to care for more than 6 kids (that aren't her own), I'm not sure if she has one or not but even if she did she can't have more than 10, including her own.

I'd for sure call someone. Regardless of the fact that she's clearly oblivious to the rules and whether or not she's broken them, she can't possibly be able to effectively care for 16 kids.