John Castillo & Associates Premier GMAC Real Estate deals in residential and commercial real estate properties in northern New Mexico. The agency offers the Multiple Listing Service for various types of properties. John Castillo & Associates Premier GMAC Real Estate provides 1- to 12-bedroom homes in a range of floor plans. It offers homes with pools, gourmet kitchens, game rooms, and spa shower and tubs. The agency s listing features Tuscan-style homes that are equipped with microwave ovens, dishwashers, refrigerators, granite countertops and antique bronze fixtures. John Castillo & Associates Premier GMAC Real Estate s commercial listing includes a variety of industrial, office and retail properties for sale and lease. Additionally, it represents clients in the sale and purchase of vacant land.