(Bloomberg) -- Elon Musk sued the law firm that led the court fight to make him complete his takeover of Twitter, saying it took advantage of the company while running up a $90 million bill.Most Read from BloombergWall Street Soothsayers Have Rarely Been So Bewildered About What’s NextYellen Had Candid Five-Hour Meeting With China’s He, US SaysAnt to Buy Back Shares at 70% Lower Valuation Than at IPOCEO Who Grew Up in Poverty Builds Rare $1.4 Billion Fish StartupMacron Is Trying to Get Back on t