 Miglin was regarded as an early developer of the business park developments.Miglin formed a successful real estate development partnership with J. Paul Beitler, who had also worked at Rubloff & Co, creating the firm Miglin-Beitler Developments in 1982.Among the projects developed by the firm were Madison Plaza, 181 West Madison Street, Oakbrook Terrace Tower (the tallest building in Illinois outside of Chicago) The firm also managed properties.