Do original owners ever illegally move back into their foreclosed homes?

[Phyllis E.]

I was looking at various foreclosed homes being sold at auction in my area and recognized a home that an acquaintance of mine had recently owned. I hadn't heard that they had lost the home or had moved, so I googled around and discovered that they lost the home to foreclosure and it was put up for the first auction in Sept. of 2013. The current MLS and new auction listing have very strict warnings about not going onto the property under any circumstances because it is occupied, and not to contact the occupants under penalty of law, etc. There are NO interior photos available and the listings state that no interior inspections will be available. How in the world will they ever sell this to anyone not otherwise familiar with the property then? Would a bank have rented out a foreclosed property to a tenant? Why couldn't they at least let a real estate agent in to at least photograph the inside of the property? (It was a very nice home when I saw it originally--and it is in a very nice neighborhood in a desirable part of the county.) Could these be hostile tenants or even the returning former owner illegally occupying the home? Would any potential new owner be dealing with difficulties in evicting these occupants?

  I asked a mutual friend if she  knew what had happened with our acquaintance and their home situation and was told that she had heard that they had moved out of state and that then the husband had moved back into the area with one of the sons (sounds like there may have been a possible separation or divorce?) I am wondering now if he might have illegally moved back into "his" house, under some sort of hostile situation, leaving the winner of the auction with the problem of evicting him.  Does this ever happen with former foreclosed owners--moving back into their homes as hostile "tenants"?

I have heard of people breaking into vacant homes and living there, and they can't be evicted without going through regular eviction proceedings. Just wondering.

This house would be a great deal if it could be gotten near at the starting bid--but just wondering what is going on with the "occupant" issue!