The Cornerstone Agency, led by Brad and Barb Herndon are real estate agents in Manchester, MD. They know that your property means a lot to you, and this is why you can trust their team of dedicated agents to have your best interests at heart. Their agents are some of the best and most thoroughly trained in the industry and they have built their careers doing whatever it takes to find the right buyers and land the best deals for each and every one of their clients.