– Britney Spears hires divorce lawyer Laura Wasser amid split from Sam Asghari.
– Asghari reportedly seeks changes to prenup terms, sparking potential legal battle.
– Actor threatens to reveal embarrassing info about Spears unless paid.
– Spears previously hired Wasser for custody battle with Kevin Federline in 2008.
– Federline received $20,000 monthly child support as ruled by the judge.
– Wasser noted Spears' satisfaction with custody ruling.
– Spears' legal move not surprising given past association with Wasser.
– Split from Asghari could escalate into a courtroom confrontation.