I essense you are asking for a "FEE TO PLACE A PURCHASE OFFER." Now that is a novel approach. If the escrow is $5,000, your are imposing a $2,500 submission fee. Wow!
Sure, go for it. You just might find an unrpresented buyer who is asleep at the wheel.
If, however, their brother, mother or son-in-law is an attorney, you may wake some morning in a house you can not sell at all.