Exempt Employees & Protected Leave

Hello!
I am new to Canadian labor law and have a question about providing leave to exempt employees:
We are a US based organization with a total of 4 Canadian employees, 3 in Alberta and 1 in Ontario (all are considered exempt). From my understanding, exempt employees in Canada are excluded from Canadian labor laws. I guess my question is what types of leave should we offer our Canadian employees in order to remain compliant? Or what are best practices when it comes to Exempt employees and protected leave?
Any thoughts or resources would be greatly appreciated!