Joint Living Trust DIFFICULT Question About Irrevocable Living Trust?

DIFFICULT question about irrevocable living trust? - joint living trust

An irrevocable trust is about 15 years. The descendants of the proximity to the last minute. In his last 3 years of life was a New Testament says that everything you give to his son when he is told to get a game (on 10% confidence). The receiver (step-child) is not included in the New Testament. The name of the child has been placed on all accounts, is a co-owner, and all their possessions (houses, cars, etc.), but confident, still exists.

My question is: What do you believe, as children (whose father is the one who created the trust existed and) you can achieve? Their names are in the trust, not in the will and the will gives everything to his son, who was only a small portion of the trust.

Do you have the confidence to make a decision in this case, sir, if anyone thought the co-ownership of everything?