ATLANTA — Berkadia has brokered the $26 million sale of The Preserve at Collier Ridge, a 419-unit multifamily complex in west Atlanta. The property offers one-, two- and three-bedroom floor plans. Amenities include a pool, fitness center, playground and a picnic area. The buyer, Montreal-based Frankforter Group, plans to upgrade the fitness center and add a business center and community room. Andrew Mays, Paul Vetter, Judy MacManus and Matthew White of Berkadia represented the seller, Atlanta-based DRI Legacy LLC, in the transaction.