National Storage Affiliates made several recent transactions across the United States. The Colorado-based REIT purchased the five-property Granite Clover Self-Storage portfolio in New Hampshire for $28.8 million. The facilities cover a combined 235,000-square-feet of storage space with 1,900 units. The facilities are located in the towns of Amherst, Nashua, Londonderry, Derry and Pembroke. Joseph Mendola of…