banewboi,
As I said before....sensible question.....sensible answer:
I don't really see how knowing his personal net worth at this moment in time will help significantly. More important I would have imagined would be to know where his earnings come from, and how they may be affected by the current economic situation. If he has owned a Falcon for a while already he would appear to be able to afford it, so I wouldn't worry unless something has changed in his situation.
Another consideration for you then is whether it's his personal jet or a company jet?
If it's his personal jet, then try and find out where his money comes from (as above).
If it's a company jet then that is much easier to check.......just look at the performance of the company and take it from there.
If you are already operating a Falcon for someone else, is the offer you're considering much better than your current deal? If you're not currently operating one, then surely you'll at least get a new type regardless of what happens further down the line?
That's my 2 cents worth anyways,
Chinchilla.