What Your Lease Actually Requires?
A flea treatment clause doesn’t automatically apply to every vacating tenant — it typically comes down to whether pets were kept on the property and whether pest activity is something that developed during the tenancy rather than pre-existing.
If a property had no pets and no pest issues, a blanket demand for treatment isn’t necessarily reasonable. That said, most agents expect documented treatment wherever a pet lived on the property, simply because fleas are difficult to prove absent without a professional inspection. Getting a certificate either way removes the argument entirely.