Multiple Listing Service - As a member of the Multiple Listing Service, we have access to virtually every home listed. Dual Agency - One of the advantages of our size is you rarely experience Dual Agency. Team Effort - We work as a team which means there is always someone available to answer your real estate questions. On the Move - Buy or sell with Cornerstone Real Estate and enjoy the use our 14 foot moving fan! Use of this van is also available to non-profit organizations.