In 2007 David O'Berry received his Residential Construction Certification (RCC) for Essential Real Estate Product Knowledge This Certification was created for real estate professionals active in either resale or new home business. Being Residential Construction Certified (RCC) ensures that the professional delivers the most effective & comprehensive assistance to buyers in building materials, methods, terminology and details of residential construction. The RCC Certification identifies a REALTOR as a true real estate professional with in-depth knowledge.