Almost anyone! If you have the cash or can qualify for a loan (subject to certain restrictions) you may buy a HUD Home. HUD Homes are initially offered to owner-occupant purchasers (people who are buying the home as their primary residence). Following the priority period for owner occupants, unsold properties are available to all buyers, including investors.
What About Financing?
HUD does not provide direct financing to buyers of HUD Homes. Buyers must obtain financing through either their own cash reserves or a mortgage lender. If you have the necessary available cash or can qualify for a loan (subject to certain restrictions) you may buy a HUD Home. While HUD does not provide direct financing for the purchase of a HUD Home, it may be possible for you to qualify for an FHA-insured mortgage to finance the purchase.
Info from http://www.hud.gov