Howard Ecker & Co. said it negotiated leases for about 23,000 square feet at 218 S. Wabash for the union Unite HERE Local 1, which moved from 55 W. Van Buren. Baum Realty Group said it represented the men’s fashion retailer Brioni in its ground-level lease of 2,300 square feet at 12 E. Walton. A fall opening is planned. Marcus & Millichap brokered the nearly $4 million sale of a property leased to Lowe’s, Whole Foods and other stores at 15619 S. LaGrange Road, Orland Park.