Help with rental property calculator costs South Florida

[Jarrod Morris]

Hi I am trying to analyze duplexes in south florida and was hoping someone with experience can help me with what would be a good number to put for eletric, gas, water & sewer per month in the rental calculator.  Additionally would you say that the estimates for property taxes and insurance on redfin are accurate or is there a better way to get a more accurate number?

Thanks