Maria Shriver has reportedly hired top celebrity divorce lawyer Laura Wasser, whose past clients have included Angelina Jolie, Christina Aguilera and Britney Spears, according to People magazine. But that doesn’t necessarily mean that her marriage to Arnold Schwarzenegger is all but done.“Maria hasn’t decided yet if she wants to end her marriage,” a source says, adding that Shriver hired Wasser before news of Schwarzenegger’s affair and child with a former housekeeper got out.