Unfortunately it's not as easy as parking money and riding off into the tax free sunset. As I mentioned down thread, we should hopefully have the first set of regs from Treasury even as soon as tomorrow which will clarify a lot of the loose ends as written in the initial legislation.
Some of what we're waiting to see is whether or not that basis improvement includes the land value or if you can split that out. If the home Bob purchases for $300k is on a lot worth $250k, does he have to spend the full $300k to improve it, or just $50k to improve the basis of the structure?
Lots of details to still work out but hopefully we'll know more shortly.