I can see a detailed will, I can also see going with the Alexander the Great solution and leaving it for the heirs to fight over. After all after you're dead who cares what happens since you are the only person that matters so you might as well have the entertainment of knowing that they'll be fighting.
Changing the trustee based on the fact that many of the known associates are criminals should be possible.
Usually money left in trust can only be spent for the good of the person it is left in trust for. The decision of what that is is left up to the trustee unless someone takes it to court. With that kind of money I'd expect lots of people watching however. Giving it all away would not be OK I'd expect. Better housing, proper security etc. would. As the child got older I'd expect that they could give a reasonable amount away which with that much could be millions a year. This sort of thing varies by state, the best I could find with a quick google is details of children with income not trusts left to them. In many states the parents have basically full control unless someone sues, in some cases the child is the one who sues. In a couple of states, California and New York especially given the amount of child actors, models etc. that make enough for it to matter 15% of the income has to be put in trust and not touched. Look for Coogan law after the child actor whose parents spent all his income.
