That is a very expensive way to get access to listings. First you will have to pay for all the real estate courses necessary to be able to take the exam. Then after taking and passing the exam you will have to pay for membership in the National Association of Realtors, the Texas Association of Realtors, and the Houston Association of Realtors. Then you will have to pay for membershp in the Houston Multiple Listing system.
Further, on every offer you will have to identify yourself as a Texas Real Estate Licensee.
So why not just go to the Houston Association of Realtors home page, where access to all listings are made available at no charge to the general public?