If you're looking to buy and want a buyer broker (definitely in your best interest) Ninety-nine percent of the time they are paid by the seller at closing. They receive a percentage (generally 2.5-3%) of the total purchase price. If you're looking to rent different areas work differently sometimes the teant pays a fee but most often this is also covered by the Landlord. I've attached a link below that you will likely find helpful on what you should be looking for in a Realtor. After reading it click on the Find an Agent tab in the green bar at the top of every Trulia page and enter Mars Pa and you'll get a list of some of the top agents in that area.