Block and Block LLP Block & Block LLP is a father-and-son law firm based in Napa Valley, California. Much of our practice relates to the wine industry. We represent some of the finest wineries and growers in California, many of them household names.But our expertise extends far beyond wine law. We advise and represent clients in a wide range of business, real estate and land use matters, both transactions and litigation. We are smart, experienced, responsive, practical and aggressive. We prevent problems and we solve them. We know local politics and business, especially the wine business. And we do it all with a passion for excellence. © 2019, Block and Block LLP. All Rights Reserved.