Being a landlord, you need to know the Alberta Residential Tenancies legislation, AND understand it inside out and backwards.
I could give you the answer in one sentence. But, you won`t learn as much as when you go looking for the answer yourself online. Google Alberta Residential Tenancies Act. You will find a myriad of answers to many landlording questions.
On the other hand, when you join REIN, you will meet people at the meetings to discuss your landlording issues with.