Good morning, Amerjan!
I have personally noticed very few HUD's that ever make it to the Investor open bid period myself. In fact, I am seeing that alot of these homes seem to be staying in the Owner Occupant bid period longer than usual, could just be me. I do not believe it is 15 days before it turns over to Investors, that is Fannie Mae.
There are several Mega Funds that are investing in Charlotte right now. Everything that I have put an Offer on has had Multiple Offers. Be prepared for this to happen and be prepared for the home to sell above list. If I were you, I would get connected with an Agent that is focusing on this part of the market and is experienced. This way, they can send you homes that suit your criteria. I think there are several other foreclosures hitting the market and short sales. Again, just be prepared to have competition. Also, you need to move fast. Things are getting Multiple Offers on day 1. Everyone has cash so it is all about the numbers.
Best of luck,