Good catch... if you're working with a Realtor, she should have informed you of this.... Never, ever look at what the "current owners" pay for property tax. Florida has a "Save Our Homes" property tax benefit for "homesteaded" property. The longer a person has owned a "homesteaded" property, the lower the property tax--generally speaking.
Go to the property tax collector's website to estimate what your taxes will be: http://www.TaxCollect.com
If you're not already working with a Realtor, go get one now and expect loyalty and give loyalty in return!
Hope this helps.
Alma Rose Kee, P.A.
Charles Rutenberg Realty, Inc.