I live in the CV and KP area. FYI, CV will only let you own 3 units max. The HOA fees for both KP and CV are quite high, add that to property taxes and these really are horrible buys for investors. Be wise to note that many agents think they're slick and break up the HOA and land lease rec fees. For example, I just did a quick search and found 10-- Yarmouth A for sale... monthly HOA fees show only $243.86 per month... LOL, but when you click into agent details on MLS you see there's also $270.28 due per month for the land lease rec. That's $515 per month in association fees alone. Now add in taxes and insurance and repairs and vacancy ... see where I'm going here?
Your rental estimates seem REALLY high unless you're offering remodeled, seasonally only and furnished.
The Palm Beach Property Appraiser will let you estimate your property taxes when you plug in your anticipated purchase price.
I work primarily with investors in this area. Feel free to reach out to me if you'd like more information.