It doesn't matter. If he can sell it all for 1% of the valuation, then that be almost two thousand million bucks! Now, with that cash, ignoring interest, he may go and spend at a constant rate of one dollar per second(*). At that rate he may do so for the next 63 years! Well beyond any estimated time-to-death for that guy.
(*) note that spending 86400 dollars per day is more than a lot of very poor people have in an entire lifetime.