John Seggerman is a mid-Atlantic real estate agent who loves the D.C. metropolitan area. He is a “neighborhood specialist” to all clients and is committed to answering any questions and concerns that come across his desk. Seggerman Homes and John Seggerman are associated with Weichert Realty, which serves Virginia, Maryland, and Washington, D.C. An Equal Housing Opportunity. Located at: McLean / Old Dominion, 6257 Old Dominion Drive , McLean, VA 22101 • Phone: 703-821-8300