With the University of Iowa’s sale of the former AIB College of Business campus in Des Moines almost final, the property’s new owners are moving ahead with plans to subdivide the land, resell some of its buildings for millions and renovate former student dorms into rental apartments.Tina Smothers, owner-broker of Optimum Real Estate Management of Stuart, and her investment partner, Jason Grove of Adel, won a bidding battle for the nearly 14-acre property previously owned and operated by AIB and donated to the UI in 2015.