Also, in the US, if you are the buyer, "your" Realtor is typically being paid by the seller, so it's hard to say who their customer is. After I found the listing for my current house, I had to practically force my Realtor to find out about it. I later found out from the seller's Realtor (for the whole development) that they were forcing lower commissions on the buyer's Realtor, so a lot of Realtors were not showing their customers the house.