strip centers anchored by groceries and drugstores; they soon graduated to developing fully enclosed malls. By 1967, they owned and operated more than 3 million square feet of retail property and had expanded nationally. His oldest brother Fred Simon joined the business and became the longtime leasing director at Simon Property Group.

The Simons followed a successful business strategy. They would entice a large anchor tenant, typically a department store, to their planned mall by charging them less rent and then would use the contract