After multiple break-in's at my Miami property, I know it is an un-nerving experience. It has got to be worse with the family involved. I've had a watch order on my house down there for several months, but it hasn't stopped them. I was told by one of the policemen that once they figure out a schedule when you aren't there, chances are they will cool it for a few weeks or so, then try again.
I don't know your feelings on carrying a weapon yourself, and with your wife and daughter, it might be worse to do so, but you may have to consider some type of alarm system. I have one up here at my North Florida place - it's called 10 Basset Hounds and let my neighbor who doesn't work know when I'm not on the property. So far, it's worked, but then again, this isn't Miami.