Seems unclear. The BC might represent money being laundered, and things like property purchases might be part of the laundering activity. If she's a laundress, I think she'd need to further pass the property titles on.
If she's the beneficiary of laundering, there's a whole 'nother interesting story untold here of why she is getting these gains.
If these are accumulated commissions, at a 10% commission she'd have moved $20B already, which would be sort of impressive. I don't know the commission rate, but the job would be well-paid.
