These properties are a "JOKE".  I have looked into some of these over the years and the term, "UNINHABITABLE", is dead on.  The county is GREEDY in asking the minimum bid of $70,000.00.   Most of these properties  will cost $50-$100 Thousand to rebuild.  Now,  if  there has been DRUG Cooking on them the DEQ can charge $20,000.00-$50,000.00 to come in and clean them up.  These are  additional  charges.    These homes are basically Tear Downs.  I recommend that  the county let the Fire Dept. use them for Fire Training.  Burn them to the ground, remove the burned crap, now you have a valuable piece of property that can be marketable.