Open House at 3131 Rosanna Today! Come On Out! June 6, 2015 Harvey Blankfeld Uncategorized. You won’t want to miss our open house this weekend! Come on out to 3131 Rosanna St. TODAY from 12:00 PM to 5:00 PM as Brown Blankfeld Group‘s own Ryan Dimang shows this gorgeous home. We hope to see you out there!