Foreclosure property with prior owners still at the house

[Annabelle Lopez]

I just came across a listing of a house at a very (VERY) good price in a good neighborhood. My realtor called right away and she was told that it was a foreclosure, the bank has it but the owners are still in the house. Therefore, no inspection or showing is allowed. Have any body had any experience with this? If I put an offer and the bank accepts it, what's next? My realtor says I just need to contact the people leaving in the house and notify them that Im the new owner and tell them that they can pay me rent or leave. Any advice?