It is up to the property management company to provide you mold free heated and livable accommodations until repairs can be made to bring the apts back to livable. The state and towns have housing authority folks you can find through your local government that can help make sure things go correctly.

Regarding your things.... you'll need to find dehumidifiers and low temp heaters to dry them out safely without damage. Some things will never be right again and might need to be tossed. Check online with places like Servpro as that is the type of thing they deal with and they can advise what can be saved and what cant.