Final answer:
The provided reference does not contain the specific information required to determine the primary specialty of Texas REALTORS® in 2016. Accurate and recent data from the relevant year would be necessary to answer this question.
Step-by-step explanation:
The question pertains to the primary specialty of Texas REALTORS® in 2016. It seems to suggest a specialization within the real estate market that Texas REALTORS® may have focused on during that year. However, the provided reference links dated 2015 and leading to the National Association of Realtors website do not contain specific information about Texas REALTORS® in 2016. More recent and specific data from the year in question would be required to accurately determine the primary specialty of Texas REALTORS® for that year. Possible specialties could include residential sales, commercial real estate, property management, or land sales, but without the appropriate data from 2016, providing a definitive answer is not feasible.