However, there is so much individual property information that can sway those values greatly.

A this point in the o/o, how can I successfully get an extra 2% to 5% off?

How do you do credit/background checks on a corpoartion vs an individual? 

You could get the tenant buyer to pay higher than market rent, but it could be structured as rent and an extra option payment.

However they said in order for them to accept my offer they will need about 2 months of extended occupancy after closing so they can save up some extra money to move.I am not sure how I could make his work.

If it's above my level of ability to repair then I have a list of individuals who are reasonable priced and licensed and insured. 

Our experience was the extra cost of the coin-op machines, the utilities consumed and the damage/abuse they received pretty much consumed any revenue generated.

Many, even most (but not all) realtors are not going to take kindly to low-ball offers from individuals that are bring buyers to pay more for a property and cut them out of a greater commission.Third, buyers can get access to MLS listings (including REO) though other agents and online sources.

And not your individual credit..

I've been told that its actual numbers.I am planning to request supporting data, utility bills, bank statements etc.It appears that units are individually metered for electricity.