Landlord insurance cancelling after 30 days vacant...normal?

[Samantha Soto]

State Farm is threatening to cancel our landlord insurance policy since the property has been vacant for more than 30 days. Is this normal?! What do others due when a property is vacant for longer than expected? I'm feeling really blindsided by this. They swear they told me about this when they quoted me, but I don't remember anything about that rule.