KELLER WILLIAMS REALTY RIO GRANDE VALLEY, is a Texas real estate firm, located at 3300 N MColl Road Suite PQ, McAllen, TX 78501. KELLER WILLIAMS REALTY RIO GRANDE VALLEY provides a wide-range of real estate services. Consumers continue to find value in having a real estate professional help them through the home buying and selling process. The wide variety of services real estate professionals provide are proving ever more valuable in real estate transactions(financing twists and sales contract intricacies). Please view KELLER WILLIAMS REALTY RIO GRANDE VALLEY current listings. Recently serving clients in areas Mission, Wood Hollow - Trenton Park.