Ed Black and David O'Berry are both members in good standing with the local Multiple listing service in Maryland. Ed Black and David O'Berry, as TeamBlackBerry of RE/MAX Results in Frederick, MD. At TeamBlackBerry, we provide professional Real Estate representation to our clients for both home purchases and home sales in Frederick County, Carroll County, Washington County, and beyond with an amazing 100% Service Guarantee! Serving Lake Linganore, New Market, Frederick, and more - so call today!