Crescent Sotheby’s adds Dubuisson family team and Nathan McCartney

Crescent Sotheby’s International Realty has brought on Herbert Dubuisson, Herb Dubuisson and Nathan McCartney to serve clients across the Mississippi Gulf Coast and Greater New Orleans. Herbert Dubuisson will also act as Mississippi Broker of Record, adding leadership as the brokerage expands in the region.

Why it matters: - The move gives Crescent Sotheby’s International Realty a multi-generational team with deep local ties in Mississippi and Louisiana. - Herbert Dubuisson’s broker leadership and regional reputation strengthen the brokerage’s footprint in the Gulf Coast market. - The team adds experience across residential, commercial, luxury waterfront and development consulting work.

What happened: - Crescent Sotheby’s International Realty welcomed Herbert Dubuisson, Herb Dubuisson and Nathan McCartney as a real estate team. - Herbert Dubuisson will serve as Mississippi Broker of Record. - The team will represent clients throughout the Mississippi Gulf Coast and Greater New Orleans. - The announcement was made Aug. 31, 2026, from Gulfport, Mississippi.

The details: - Herbert Dubuisson has worked in real estate since 1999 and has closed more than 2,000 residential and commercial transactions. - Herbert Dubuisson earned honors including National Association of REALTORS® 30 Under 30, New Orleans CityBusiness Excellence in Real Estate and Rising Star in Real Estate. - Herbert Dubuisson became the youngest professional inducted as a Lifetime Member of the Gulf Coast Association of REALTORS® Top Producer Club Round Table. - Herbert Dubuisson served as 2026 president of the Northshore Area Board of REALTORS® and on the Louisiana REALTORS® Board of Directors. - Herbert Dubuisson holds the Certified Real Estate Brokerage Manager designation and is a Ninja Certified Manager. - Herbert Dubuisson was among the first four professionals worldwide to complete the Ninja Certified Manager program’s requirements. - Herb Dubuisson’s career spans nearly five decades. - Herb Dubuisson and his late wife, Patsy, founded Bayshore Realty in Waveland in 1983 after building a business selling waterfront property in Hancock County. - Bayshore Realty later expanded across the Mississippi Gulf Coast before merging with Coldwell Banker Alfonso Realty. - The combined company became Mississippi’s largest brokerage and closed about one in every four Gulf Coast sales during Herb Dubuisson’s ownership. - Herb Dubuisson is a past president of the Mississippi Association of REALTORS® and the Gulf Coast Association of REALTORS®. - Herb Dubuisson also served as liaison to Mississippi’s Fifth Congressional District, earned REALTOR® of the Year honors and entered the Gulf Coast Association of REALTORS® Hall of Fame. - Herb Dubuisson holds GRI, CRS, CCIM and CRB credentials and is a state-certified and licensed appraiser. - Nathan McCartney is licensed in both Louisiana and Mississippi. - Nathan McCartney grew up in Mandeville, Louisiana, and worked in the restaurant industry before moving into real estate in 2023. - Nathan McCartney previously oversaw operations in Pensacola as a general manager for Krispy Kreme. - Nathan McCartney now represents buyers and sellers across Greater New Orleans and the Mississippi Gulf Coast. - Nathan McCartney has served on the Louisiana REALTORS® Board of Directors and completed the Ninja Selling Installation. - Crescent Sotheby’s said the team’s combined experience covers nearly five decades of industry leadership and multiple property types. - Crescent Sotheby’s said the three agents bring extensive knowledge of the Louisiana and Mississippi markets. - The brokerage said the team’s structure is designed to provide responsive service and informed guidance through each stage of a transaction. - All three team members support charitable and community groups including the New Orleans Mission, Hancock County Food Pantry, local chambers and professional organizations across Louisiana and Mississippi. - Crescent Sotheby’s International Realty serves buyers, sellers, investors and developers across Louisiana, Mississippi and Alabama.

Between the lines: - The hiring pairs a legacy Gulf Coast brokerage family with a younger agent focused on buyer services, giving Crescent Sotheby’s a mix of senior leadership and newer-market energy. - Herbert Dubuisson’s broker role suggests the company is investing in local oversight as it grows deeper into Mississippi. - The emphasis on board service, certifications and community ties points to a strategy built around credibility and referral relationships rather than volume alone.

What's next: - Crescent Sotheby’s is likely to lean on the Dubuisson family’s existing relationships as it expands across the Gulf Coast. - Herbert Dubuisson will help guide agents and brokerage operations in Mississippi. - The team will continue working with buyers and sellers in Louisiana and Mississippi while supporting local charitable efforts.

The bottom line: - Crescent Sotheby’s International Realty has added a high-profile Gulf Coast team with deep local roots, broad transaction experience and a leadership layer designed to support further regional growth.