Embattled auto industry titan Carlos Ghosn has hired top-gun corporate defense lawyers Brad Karp and Michael Gertzman of Paul, Weiss, Rifkind, Wharton & Garrison in New York to fight allegations that he underreported his income and misused company money, according to a source familiar with the matter.

Japanese authorities arrested Ghosn in Tokyo on Nov. 19 while investigating accusations that he failed to report income that he received over a five-year span that began in fiscal year 2010, according to a statement from Nissan Motor Co., which conducted an internal probe based on a whistleblower report. Prosecutors allege that Ghosn underreported about $44 million over five years, according to the Financial Times. He’s also accused of using about $18 million in company money to buy several homes and pay his sister for sham consulting jobs, The Wall Street Journal reported.