What all can the seller pay for?

[Dave S.]

Im working with a seller that is willing to work with me on purchasing his investment properties (he wants to retire). Like most people want, I would like to minimize the cash out during the transaction / closing. What all can a seller pay for during a conventional closing? I've been reading that there is a cap at 2% seller concession. Are there any other items that i can ask for to be paid that dont count towards this 2%????