Im a builder and Realtor. This is never a win/win. Realtors expect 3% or you'll be black balled. You have to decide if you want recurring realtor business or not. In Dallas, anything less than 3% is scoffed at. Most builders start at 3% go up from there for recurrent business. Basically, play the game or go at it alone without Realtor business. Business model decision you have to make.