Does ADDVANTAGE earn a commission when I sell my home flat fee MLS?

Only if you opt into our Agent Activate® program, otherwise no. One thing is constant: you will never pay a “listing” commission because “flat fee” takes the place of a listing agent commission (Which would normally be around 3%). Whether or not you pay a "buy side" commission depends on whether a real estate agent brought you a buyer. If so, then you would pay the commission amount that you agree to pay when you list on the MLS. (Typically 3%). However, if you find a buyer that is not represented by a real estate agent, then you will pay no commission at all. Just the flat fee!