vestage
now this may be a long story in its entirety, but I will try to hit what i consider to be the salient points.
As far as my personal situation is concerned, I've been here a long time, nevertheless, originally from elswhere. further, please understand that i am not a financial expert or advisor and anything I say here merely serves to get you think about issues and perhaps ask the right questions.
This country is not taxfree! quite to the contrary, it merely has a different tax system, which is indirect and based on consumption.
For lets say a US citizen to move here and make Cayman his/her home, would only become (financially) interesting, after initial income taxes had been paid ( if the money was earned in the US) Note: The USA State department reserves the right to tax its citizens on their worldwide assets and income. (this may not be the exact language, but that's roughly what it means. moving along, so if you now take your "clean" money and you purchase a residence in Cayman (or invest it otherwise) any profit that results from that investment is yours in its entirety. there is perhaps an additional level of protection if you gain permanent resident status here but I don't know about that.
if you are contemplating such a move to protect some of your assets from double and triple taxation, then i suggest that you perhaps do a trial run, come down rent a house for six months, perhaps from November to April would be a good time to be away from Pittsburgh (I used to have to go to SIM there in Winter, BAC 1-11) that could give you feel for the place and the commute and then take it from there.
I hope that helps