Walker & Dunlop Inc. has arranged a $44.3 million refinancing loan for Marietta Technology Center, a 347,500-square-foot office park in Marietta. Mark Strauss and Rob Quarton of Walker & Dunlop represented the borrowers, Praelium Commercial Real Estate and South Street Partners, in arranging the seven-year, fixed-rate loan with interest-only payments. The refinancing covers the asset’s four, single-story buildings, which were built between 1983 and 1985. The office park is situated at 2161 New Market Park Way, about 16 miles northwest of downtown Atlanta.