Sonoma, Calif.—Tony Correia, a vineyard and farm property expert, announced that he had left Correia-Xavier Inc., the firm he founded, to form his own new venture, The Correia Co. Correia and his wife, Stephanie Correia, will focus on litigation and tax work in the wine industry as well as valuation disputes, estate planning and gifting, purchase price allocations and AVA and partial-interest valuations.