What to offer the bank on a foreclosere property?

I have found a property that I am interested in and it just has recently been foreclosed on and auctioned back to the bank. The bank was owed 320,000 on the house but since the market dropped the house is only showing 156,000 from the property appraisers and Zillow. At the auction the bank was only willing to go up to 136,000 on the property. I am uming that that is all they think it is worth. The house does need repair as the people who had it before was busted for growing drugs so half of the house has been totally transformed to grow plants. So I am trying to find out what I should offer the bank. Will the bank go out a view the property or gt an appraisal?