Otago landlords with unruly tenants are being told to give them the boot before a law change makes that even harder to do.

But the group representing tenants' rights said the move was "highly unethical".

Limitations to terminating a rental were among new changes to tenancy rules that come into effect next February.

Landlords would need firm evidence, such as video of several anti-social events before going to the Tenancy Tribunal.

Property expert Sara Hartigan joined The One Roof Radio Show on The Weekend Collective to share her advice.

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