People selling a property want to work with a realtor they can trust. The more people you can get to say good things about you, the more clients you will get to sign on with your company. If nobody says anything about your services, clients will not believe in your service claims, and most probably won’t even think to hire you. This is a philosophy and concept that is also applied for marketing your services using testimonials. If you are an established realtor, who’s trustworthy, you should be able to prove this. That is where testimonials come in.