About Us

Mark T. Blake has been practicing law in the Bay Area since 1995. Mark specializes in Family Law (specializing in Dissolution, Child Support, Spousal Support, Custody and Visitation, division of assets and debts, premarital and postmarital agreements), and Estate Planning (specializing in Living Trusts, Wills, Advanced Health Care Directives, and Durable Powers of Attorney).

Mark is licensed to practice law in all the courts of the State of California, including the Supreme Court of California, the Ninth Circuit Court of Appeals, and the Federal District Court for the Northern District of California. He graduated from the University of California Berkeley and Santa Clara University School of Law, and was admitted to the California Bar in 1995.


  • California State Bar
  • Contra Costa Bar Association, Wills and Trusts Section
  • Contra Costa Bar Association, Family Law Section
  • Business Network International, Valley Business Connections.


Mark and his wife, Marienella, have been married since 1991 and have three adult children including a son and two daughters. Mark has been a part of the San Francisco East Bay Community for more than forty years. Mark likes spending time with his family, hiking and walking the family dog. When his schedule permits, you may find Mark on the ski slopes in Lake Tahoe, California. You might also catch him in the audience at a sporting event, at an a capella concert, or at a musical theater production. Mark is still trying to break 100 with his golf game.

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