Commercial R.E. Commission Structure

[Jason Merchey]

I heard about a building that the owner might want to sell. I was thinking of coming to them with a "Hey if I don't have a realtor on my side, and you don't either, we can do this for below market value." 

Questions: a) Is the commerical commission in South Carolina probably 6% total - which compensates a buyer's agent? Or does the buyer pay the buyer's agent directly? 

B) Would it be wiser to try to get a 2.5% interest rate on like 85% seller financing for five years and buy the office building for market value? 

I was thinking I would be savvy if I didn't bring a realtor to the table and they don't have one either, but I need to get my strategy straight.