NYC indie heads to the Hamptons; ONE Sotheby’s acquires NJ firm 

Editor's note: The brokerage business is a busy one, with frequent moves, mergers and milestones. Here we highlight some of the latest activity among brokerages across the U.S.

ONE Sotheby's enters New Jersey, appoints regional president

ONE Sotheby's International Realty is expanding into New Jersey through its acquisition of Callaway Henderson Sotheby's International Realty, extending the brokerage's reach from Florida's east coast into the Northeast.

Callaway Henderson, founded through the 2012 merger of two longtime family-run firms, brings 135 agents and two offices serving five counties across the Garden State. The Sotheby's affiliate reported nearly $800 million in closed sales in 2025, according to a news release.

The acquisition adds to ONE Sotheby's 30 Florida offices and creates "a powerful corridor of luxury real estate expertise" between the two states, the company said. Prior to the announcement, ONE Sotheby's was ranked as the No. 30 brokerage in the country by 2025 sales volume, according to T3 Sixty's Mega 1000. (Note: Real Estate News is an editorially independent division of T3 Sixty.)

"The Callaway and Henderson families have built an exceptional business that has defined excellence in Central New Jersey through decades of leadership, integrity, and trusted market expertise," Daniel de la Vega, ONE Sotheby's president and CEO, said in the announcement.

Jud Henderson, managing member at Callaway Henderson Sotheby's, called the union "a defining evolution for our family business, and an incredible opportunity for our brand's future." 

In conjunction with the acquisition, Aileen Konzelmann has been named president of ONE Sotheby's International Realty's New Jersey operations. She previously led Weichert Premier's Moorestown and Haddonfield offices and spent 23 years with Marriott International.

The Agency adds 3rd office in the Silver State

The Agency has expanded its Nevada footprint with the launch of The Agency Incline Village, adding to its existing offices in Las Vegas and Reno, the luxury brokerage announced.

The new office will be led by Managing Partners Zar Zanganeh and Jenna Rose Madrid. Zanganeh also oversees The Agency's Las Vegas and Reno offices, while Madrid brings experience in the Incline Village and Maui, Hawaii, luxury markets. The move reflects continued demand for second homes and luxury properties around Lake Tahoe, driven in part by Nevada's tax-friendly environment and year-round appeal, according to a news release.

"Incline Village is one of those markets that earns its reputation every single day," The Agency Founder and CEO Mauricio Umansky said. "The combination of Nevada's tax advantages, Lake Tahoe's natural beauty, and a true four-season lifestyle continues to attract sophisticated buyers from California and other major wealth markets."

"Once you've spent real time here, on the lake, on the mountain, in this community, you understand why it has become one of the most sought-after second home and luxury retreat markets in the country," Zanganeh added.

Decode Real Estate launches Hamptons division

Decode Real Estate has launched Decode Hamptons, expanding the New York City brokerage's presence into the East End luxury market.

The new division will be led by Nastassja Balick Coppers, who joins Decode after several years at Compass. Balick Coppers specializes in advising high-net-worth and international clients on luxury properties in New York City and the Hamptons, according to a news release.

Decode Hamptons will focus on sales, acquisitions and estate advisory services for buyers seeking primary residences, second homes and long-term investments. The company added that demand for turnkey luxury properties in the Hamptons remains strong, even though buyers have become more selective in recent years.

Decode Founder Danielle Nazinitsky, who has closed more than $300 million in sales volume across more than 250 transactions, said the expansion reflects growing overlap between clients investing across both markets. "High-net-worth clients don't just buy in one market — they live across NYC and the Hamptons," she said.

Balick Coppers "has always been my perfect complement, handling ultra-high-end properties with instincts I can't teach," Nazinitsky added. "She's the ideal leader to bring our client-first approach to the East End."

More brokerage news

Christie's International Real Estate has landed in Los Cabos, bringing on local brokerage Oceanside Real Estate as a new affiliate in the popular resort destination. Now operating as Christie's International Real Estate | Oceanside Los Cabos, the 35-agent firm is led by husband-and-wife duo Dennis and Renee Fleming and boasts annual sales of $110 million. The brokerage specializes in luxury, pre-construction sales, resort golf communities and residential developments, according to a news release. "Dennis, Renee and the Oceanside Los Cabos team embody the best qualities of a local independent operator: deeply entrenched in the community and committed to the agents and clients they serve," said CIRE President Gavin Swartzman. 

Michael Saunders & Company has welcomed luxury waterfront specialist Lysette Ketterer to its office in St. Petersburg, Florida, bringing the location's agent count to 20. Ketterer, formerly with Century 21, has been serving the Southwest Florida market for more than a decade and "is a great addition to our growing presence in the region and reflects the caliber of professionals who continue to strengthen our company and culture," St. Petersburg Branch Manager Marc Caldarone said in a news release. The brokerage also highlighted Ketterer's "personalized service and results-driven mindset" and ability to combine "data-driven insights with intuitive market knowledge to deliver a seamless and rewarding experience."

Editor's note: AI was used in the initial drafting of this content, which was then thoroughly reviewed, fact-checked and revised by a Real Estate News editor.