I'm Lucy, and I'd be happy to answer your questions today. I'm sorry to hear that this happened.
Not only are you not obligated to pay your landlord rent for time the property was uninhabitable due to a hurricane, but the landlord has to reimburse you for your hotel. That's the deal - you pay rent, he gives you a place to live. When you can't live in the place you're renting, the landlord pays for you to live somewhere else, or he needs to refund your rent for each day you could not live there. The fact that he called the police to try to make you leave (which is illegal) also counts in your favor.
When a rental property is destroyed by flood, fire, or hurricane, that means it's impossible for the rental contract to continue. Both parties are excused from performance. So, you are allowed to move out once you notified the landlord as to the damage (especially since FEMA told you to move out - you can't stay after that). The landlord doesn't have any legal right to keep your belongings, but he's going to try to claim rent up until the day you retrieve them. It's in your best interests to remove your belongings as soon as possible.
The landlord is generally not responsible for the damage to your belongings. It's up to a tenant to carry insurance to protect against acts of God and nature. To get that money, you'd have to be able to prove that it was the landlord's negligence that caused the mold rather than the hurricane itself.
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