Mercer Business Park's initial distribution and industrial building has landed its second tenant in recent weeks, the growing Dallas-based Paragon Distributing Co. Paragon -- a wholesale distributor of specialty indoor and outdoor appliances -- has leased 50,068 square feet of the northwest corner of the 340,000-square-foot distribution center that Dallas-based Billingsley Co. currently has under construction. "Our new distribution center was a very good fit for their present space needs and we…