Not attaching a defects list to the lease.
Not attaching house rules to the lease.
Non-compliance with a Rental Housing Tribunal ruling, or attempting to deceive them.
Unlawfully locking a tenant out or shutting off utilities – spoliation is a criminal offence!
Not repaying a tenant's deposit and interest.
Not providing a habitable dwelling (i.e. failure to do required maintenance and repairs).
Not reducing a lease to writing.