As a transactional attorney, Stephanie Chandler of San Antonio said that a recent Texas Supreme Court ruling will enable her to advise clients without having to second-guess their decisions.

In a case that was hotly watched by Big Law firms that signed on to amicus briefs, the high court expanded the attorney immunity doctrine—which protects a lawyer from litigation by nonclients over their representation of a client—to apply not just to litigators, but also mergers and acquisitions attorneys, such as Chandler.