X husbands sister was listed as bene/ custodian of profit sharing in 08. Childern are presently 26,24 & 20. She did not include profit sharing through estate attny stating she was the beneficiary . Estate is now settled , she keeps telling my children to tell her what they need money for. That money was designated for the children. Can she still control the money even though they are all of legal age? She states she does not even know how much is in the acct. I know there is in excess of 100,000. Should I get an attny to protect the children. X husband was manic Depressive/alcohol dependent. Should I butt in?