Healdsburg wine company plagued by failure of partnership, lawsuit, mountain of debt.In 2007, Jim DeBonis set out to save three storied Sonoma County wineries. Geyser Peak, Buena Vista Carneros and Gary Farrell were being sold to the world's largest wine company, Constellation Brands, and he feared for their future.So DeBonis, chief operating officer of the company unloading the wineries, Beam Wine Estates, set out to buy them back from Constellation and return them to local ownership.