When I take a listing I sit down with my sellers and we do an estimated net sheet and I include the seller paying for 3% in closing costs since it is very rare for a buyer not to want seller paid closing costs. The key to doing this is so my seller's are prepared when they do get that offer. There are companies offering to pay 3.5% if the buyer closes by a particular date. The question being is what is the norm around you. I have gotten offers where buyers ask for the full 6%. Hope this helps you!