Since there is no personal injury involved, I have changed the category to Landlord / Tenant for you.
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I would consult a landlord/tenant attorney as the facts don't seem right. I'm assuming you we're able to see your stuff unpacked so I would just take them if you can.
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Did you or your landlord have insurance for the fire damage? I would ask the landlord and also look at your lease. You should consult a lawyer who concentrates on landlord tenant law.