What does it matter if he is lying? How is that any of her business? I don't get it. There are plenty of white business owners out there trying to use their platform to sell you something and lying about their income yet she wants to target a black man for doing it?
I don't see him lying though. He sounds legit as hell. He was passive aggressive but polite. I would have told her, get any accountant of your choosing, and I'll pay for it and he will confirm or deny it. Agree he won't say the exact amount but that he isn't lying.