Moving to Texas? Find a qualified professional Realtor

There is a level of competency that cannot be achieved by agents who don't live where you're looking. Let's say there are two MLS's where you're looking. If you're looking in an area with overlap or right on the edge of one, you want a realtor with membership to both, just as I have membership in both BCS and HAR. Here is a map of MLS's: National Association of Realtors MLS Map. 

You can look up agents and their training here: Texas Real Estate Commission. Then check with the National Association of Realtors® to make sure they are not just an agent, but also a Realtor®. Realtors have a higher standard of service, ethics and legal training, and fiduciary duty, adhering to the NAR Code of Ethics. 

Real estate sales varies between states. You may be coming from a state that does not utilize a Buyer's Representation Agreement. The reason for the Buyer's Representation Agreement is so the agent can ethically show you sale prices of properties for comparison purposes. A good agent will invest hours in your search long before you ever meet, and the BRA gives the agent the assurance that their hard work will pay off. 

I highly recommend you sign one. First, though, discuss it with the Realtor® you're interviewing. Ask the agent about the blank for "location." It should be filled in with the right city, county, area, and/or MLS. Agents should not be showing you areas themselves with which they are unfamiliar. Ask the agent what would happen if your search extends beyond that area. The agent should be willing to refer you to an agent in the right area/MLS. It would still be your choice, with the agent's agreement, to go together beyond that, but the limits have been set, and that's good for everyone. 

Most reputable agents will release you from the Buyer's Representation Agreement if you find you are not a good fit. Clarify how this would work before you sign. 

And, finally, WELCOME TO TEXAS!