I may be misunderstanding, but I think the idea here is not to convince a particular vet to live in Detroit instead of Florida, but that there be some kind of coordinated purchases in a limited area of the city, which would change the nature of the area that they were moving to. Detroit has pretty good infrastructure for veterans, so it isn't completely ridiculous. There are a lot of veterans, you don't need a very high percentage of interest to populate a neighborhood.

I see the problem primarily as one of doing the coordination--how do you insure that you actually are going to have an adequate number of people, actually finding places to buy, in a short enough timeframe that the pioneers don't feel too exposed. This is the kind of thing that I can easily see growing once it is established, but which establishing would be pretty difficult.