Hi
Just to clarify, there is no law requiring you give your tenants 30 days notice in Alberta. We are talking about the agreement is between the tenant and the "landlord". Most PM's are the agent for the landlord, so the PM company acts on your behalf.
30 days is just a couresty to your tenants.
Many tenants pay by pre authorized bank withdrawels (PAW) and post dated cheques. PAW are usually done 3 days prior to the first of the month.
Notice for your property manager on the contract between you as the owner and landlord, and your agent, the property manager is whatever the contract you signed states. That could be 30, 60 ,90 days or 2 years.
We have taken over buildings on the last day of the month, and we just give the tenants notice. MOST property management firms with work with the new property manager on the change over. Tenants will pay one or the other, but in the end all works out.