The agent’s professional fee/commission is generated by the sale of the house and shared between the listing agent and the agent representing the buyer. In the local market, you can plan to invest an average of 6% to cover this fee. Flat fee brokers have their own fees and oftentimes charge their flat fee and separate ala cart fees for additional services like holding open houses. The Sly team is affiliated with Keller Williams Greater Des Moines. We are a full-service brokerage and do not charge extras for getting your home sold.