The global residential real estate brokerage network owned by billionaire Warren Buffet has expanded into Mexico with its first office in Los Cabos. The global residential real estate brokerage network owned by billionaire Warren Buffet has expanded into Mexico with its first office in Los Cabos. Berkshire Hathaway HomeServices Los Cabos Properties is run by Ian Gengos, originally from Australia, who lived and worked in Canada and the Caribbean before settling in Cabo. The office is located in the main plaza in San Jose del Cabo.