Sotheby's Buys De La Vega's ONE Sotheby's in South Florida
Sotheby's International Realty bought Mayi de la Vega's ONE Sotheby's and Washington DC's TTR Sotheby's, its two biggest franchises.
Sotheby’s International Realty has acquired ONE Sotheby’s International Realty, the Miami-based luxury franchise run by Mayi de la Vega and her son Daniel de la Vega, along with Washington D.C.’s TTR Sotheby’s International Realty, the company announced September 9. Financial terms were not disclosed.
Why it matters
ONE Sotheby’s is the dominant listing brokerage for new-development condo sales across South Florida, from Miami to the Treasure Coast. A developer marketing a tower in Miami, Fort Lauderdale or Palm Beach has likely routed sales through its agent network at some point. Folding that franchise into the parent company means the distribution channel developers depend on for condo absorption is no longer an independently owned local operator, it now answers directly to Sotheby’s International Realty’s corporate structure, even though the same leadership stays in place for now.
The numbers
ONE Sotheby’s brought about 1,400 agents across 31 offices stretching from Miami to Jacksonville, plus outposts in Princeton and Lambertville, New Jersey, into the deal. The firm posted $6.85 billion in sales volume across more than 5,200 transaction sides in 2025. TTR Sotheby’s, the Washington metro’s largest luxury brokerage since 1988, added roughly 600 agents and $5.71 billion in volume across more than 4,200 sides. Combined, the two franchises Sotheby’s just absorbed did $12.56 billion in sales last year, making this the largest brokerage consolidation South Florida has seen in years.
What’s next
Leadership is not changing hands. Mayi de la Vega stays on as ONE Sotheby’s executive chair and Daniel de la Vega remains president and CEO, while TTR’s Mark Lowham, David DeSantis, Derrick Swaak, Jonathan Taylor and Michael Rankin all keep their current roles. Neither outlet reported a brand change for either franchise’s name. Daniel de la Vega said the move gives the firm access to the parent company’s “world-class tools” without losing its local feel, a framing developers relying on the brokerage’s agent network will want to see tested as the integration plays out.