Agents not calling back

[Toby Shacalo]

Hi, i am new ro real estate and I decided to start looking into investing out of state. I have been searching online for and inquired on 15 different properties. Out of the 15 realtors I called, only 2 called me back, or have emailed me. I did speak to about 5 agents and when I mentioned I want to buy to invest is seemed that the tone of voice change and they will call me back. Is there something I should be doing or saying different?

Thanks in advance