Generally speaking, that would probably be considered inheritance and not be part of your property distibution.  In other words, it would not be considered an asset of the marriage.  Assets acquired during the marriage are marital assets.  But I would have some one take a look at the trust anyway.  As for deciding if it can be considered income for child support, that varies from state to state.  What also need to be considered is if the money is actually available to him now.  Generally it only becomes available when the parent passes away.  Good luck.