The best person to answer your question with real accuracy would be an insurance agent. The price of the insurance will vary depending on age, type of roof, windows, etc. If you already have a property in mind, go to http://www.miamidade.gov and click on property search, enter the address and you will be able to see the tax roll for the property. This information will help the insurance agent estimate the cost of insurance. You could also provide an insurance agent with the address of the property so that he can pull up the records and estimate the cost of insurance.
If you have any further questions regarding this or any other issue pertaining to real estate, you may contact me at 786.302.0351 or email me directly at juan@insideMIAMIrealestate.com.