Why federal? The federal government has no authority to do so. Housing is literally, more than any other market, an intra state matter, and the feds cannot regulate intra state trade.
It is entirely different to move your company or business to another country vs another state. Most people are not going to expatriate and most companies wouldn't gain much from doing so. Property is already much cheaper in Mexico, but you don't see anybody with a high-skill workforce moving there.