Real EstateOpen Houses This Week in GreenbeltSonia Dasgupta, Patch StaffPosted Fri, Jun 21, 2013 at 4:14 am ET|Updated Fri, Jul 26, 2013 at 12:09 pm ETBrought to you by Zillow. Get more local news delivered straight to your inbox. Sign up for free Patch newsletters and alerts.ThankShareWe’ve removed the ability to reply as we work to make improvements. Learn more here