It depends if you are licensed and growing your medicine, you are protected by your documentation and the charter of rights and freedoms.when you apply,health canada asks where you live and will you grow there.
They do not ask if you own or rent.
If you want to grow somewhere else,they ask for owners info and permission. If you grow in your normal place of residence they don't want to know anything about the landlord.
In fact if you apply and include landlords info they will return your application as incorrect