Commitment to Ethics Most Real Estate professionals in our province are members of the Ontario Real Estate Association(OREA) and only members of OREA can call themselves REALTORS. When you work with a REALTOR, you can expect not only strict adherence to provincial laws, but also adherence to a Code of Ethics. That code is very important to you because it assures you will receive the highest level of service, honesty and integrity. Multiple Listing Service (or MLS) is an exclusive service accessible only through a REALTOR and it can be a valuable tool. Through the MLS, the details of a wide variety of listed properties are made available to the REALTOR you work with. This can save you a tremendous amount of time and effort in your search for the right home.