The bRokerage


Established in 1976 as a real estate division to service the clients of Sotheby’s esteemed auction house, Sotheby’s International Realty® quickly became perhaps the world’s leading luxury residential brokerage firm.

It has remained true to the code of uncompromising quality and unsurpassed service that has been synonymous with Sotheby’s name for more than two centuries while meeting the demands of today’s marketplace. Its network of international offices and continued connection to Sotheby’s auction house allow Sotheby’s International Realty® to provide unparalleled consulting, marketing, and brokerage services for distinctive properties.

That same worldwide scope as well as the respect and recognition the name Sotheby’s enjoys allows the real estate division’s sales associates unsurpassed access to the global marketplace and highly qualified international buyers. Although Sotheby’s International Realty®'s brokerage offices have set selling price records throughout the world and have represented the sale of many extraordinary estates, their approach to representing property has proven to be advantageous in a range of prices.

The firm’s offices — located in key residential and resort markets including New York, London, Cape Cod, the Hamptons, Aspen, Palm Beach, San Francisco, and Beverly Hills – provide a tradition of white-glove service and commitment to clientele as well as vital support for sales associates.

When clients put this prestigious company’s local connections and knowledge together with a 260-year tradition of global reach, they have an unparalleled marketing opportunity for their properties.

Only Sotheby’s International Realty® is backed by a 260-year tradition of excellence and global influence, allowing its agents to present properties in all price ranges to a distinguished portfolio of highly qualified local and international clientele.


Conveniently located in the picturesque and historical Sonoma Plaza, the Sotheby’s International Realty® Wine Country brokerage, Ginger Martin’s home office, specializes in fine homes and vineyard estates, ranches, vineyards, and vacation properties.

Its coverage area includes a breathtaking swath of California north of the Golden Gate Bridge and stretching from the Sonoma Coast, inland to the eastern slope defining the Napa Valley.

The region’s charming communities include the towns of Napa and Sonoma as well as St. Helena, Rutherford, Yountville, Calistoga, Healdsburg, Glen Ellen, Kenwood, and Santa Rosa. This is California’s oldest wine-producing region and the one for which the State has become internationally renowned when it comes to the production of world-class wines.

Its viticulture is only one facet of the area’s riches, however. Its agreeable weather, plentiful recreational activities, cultural richness, and a plethora of superb dining and shopping opportunities create an ambiance of relaxed luxury. It is only fitting, therefore, that Sotheby’s International Realty® and Ginger Martin & Co. play an integral role in the representation of fine properties within the region. Conveniently located in the picturesque and historical Sonoma Plaza, the Sotheby’s International Realty® Wine Country brokerage, Ginger Martin’s home office, specializes in fine homes and vineyard estates, ranches, vineyards, and vacation properties.


CA DRE# 01407690


Real estate lawyer and licensed broker, Jeffrey Gibson is the brokerage manager of the San Francisco and Wine Country offices. Jeff has 25 years of experience practicing law, including 15 years as a partner with the San Francisco firm Goldstein Gellman Melbostad Gibson & Harris, LLP, specializing in real estate as well as construction, employment matters, and family law. Since 1996 he has provided outside legal counsel for Sotheby’s International Realty’s operations and has worked closely with the San Francisco, Wine Country, and Carmel offices and the company’s corporate counsel in New York on various litigation and transactional matters.

​​​​​​​Gibson earned a B.A. from the University of Texas, Austin, and a J.D. from Pepperdine University in Malibu, California. He served as an adjunct professor of law at Golden Gate University School of Law in San Francisco.

Gibson has also served for three years on the Board of Directors of the AIDS Legal Referral Panel. Since 1995, he has served in multiple positions within the American Bar Association (ABA), and in 2000 was appointed by the president of the ABA to serve on its Unmet Needs of Children Committee. He currently sits on the board of the California Pacific Medical Foundation. Gibson served as a delegate to the ABA from 2003 to 2010, as well.

CA DRE# 1173646


Jonathan Soh, licensed real estate broker and Brokerage Manager of Sotheby’s International Realty Wine Country offices, manages over 70 agents operating in the North Bay area.  

​​​​​​​Jonathan has over 20 years of experience in real estate lending and sales in Sonoma, Napa, and Marin Counties, including residential, commercial, and agricultural properties. He joined Sotheby’s International Realty Wine Country Brokerage in 2007, where his focus has been luxury real estate sales and real estate development.

With both agents and clients, Jonathan is an effective communicator and negotiator and has been a leader among his peers since joining Sotheby’s International Realty.  

He is currently responsible for assisting Sales Associates navigate through a real estate transaction to the successful close of escrow as well as maintain strong client, agent, and community relationships. He is an active member of the North Bay Association of Realtors and the Sonoma County Alliance.

Jonathan holds a B.S. from the University of Colorado, Boulder where he studied business and journalism and earned an MBA from the University of Minnesota, Carlson School of Management.  He was raised in Kailua on the island of Oahu in Hawaii.


We offer the highest level of expertise, service, and integrity. Ginger Martin possesses a track record shared by very few real estate professionals globally. Ginger’s distinguished clients greatly benefit from her extensive experience.

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