Widdows runs Scottsdale, Arizona-based HomeSmart, the fee-based brokerage he founded in 2000 that allows agents to pay transaction and membership fees in lieu of splitting commissions with the brokerage. HomeSmart, the 12th-largest real estate enterprise in the US, has approximately 64,500 agents at company-owned and franchised offices who do approximately $31 billion in annual sales. In 2025, the firm unveiled a full rebrand to mark its 25th anniversary and entered a national marketing agreement with mortgage lender Lower Mortgage.