Blue Line Properties LLC Blue Line Properties LLC Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Real Estate & Construction >> Real Estate Management Blue Line Properties LLC 1990 Cardigan AvenueColumbus, OH 43212 | map | directions (216) 496-8251 Need to update your categories or expand your listing? Or want to learn how your business can become a part of the Chamber? Contact us at membership@columbus.org for assistance.