Mark,
That is very interesting. I have heard reports of China buying up properties (old news, right?) in the US which in turn has many people worried about rising housing costs in areas like LA and NY. It never occurred to me that might be the case here.
Is the municipality/government selling the buildings in Ponce for next to nothing or are these mostly private sales? I know in Arecibo (this was a couple of years ago, I am not sure what they are offering now) they were offering some for free as long as you paid for the renovations. We are talking about long neglected buildings though where renovations costs would be a serious investment.