Duffy leads the large real estate network United Real Estate, which operates residential, country, and auctioneering divisions. Its residential division operates with a fee-based business model with both company-owned and franchised offices. In 2023, the firm introduced group healthcare and financial wellness programs as well as a Lead Boost initiative. United Real Estate, which further expanded its reach in 2023 with acquisitions of brokerages in Texas and Alabama, ranks as the nation’s 12th largest brokerage with over 14,000 agents at company-owned offices who do approximately $21 billion in annual sales.