Dear Nikola,

As I awoke in the middle of the night, perhaps from a dream, it occurred to me that the documents which you attached to your recent e-mail reflect an attempt to amend, i.e. to revoke an irrevocable trust. Arguably this might be feasible and permissible under U.S. jurisprudence which is very pragmatic, if all parties affected by such revocation consented. That the corporate trustees, i.e., the banks should be expected to consent, is a remarkable reflection on U.S. corporate culture.  

Whether your consenting to the modification of an irrevocable trust to which you are the contingent beneficiary would be to your advantage or to your disadvantage depends on many circumstances of which I have no knowledge: 
a) the effect of your decision on family relationships
b) the relation between the amount in issue and other assets available to you.
c) the manner and the purposes for which the laws of Delaware, which are unique, are to be applied.
d) who would appoint, and who would be appointed as the successor co-trustee to Robert.
e) by whom and how your interests, as contingent beneficiary would be protected.

You should be aware that the other parties' need for your assent gives you great leverage.  In what manner, if at all, you should try to use this leverage, I have no idea.

EJM