The Dodgers owner wants to maintain the right to sue his former law firm, which was responsible for a since-invalidated agreement that would have given him sole ownership of the team. His attorneys says a case could be worth "hundreds of millions of dollars."Dodgers owner Frank McCourt on Monday will ask a judge in Boston to clear the way for him to pursue a malpractice claim against his former law firm that his attorneys say could be worth "hundreds of millions of dollars."