Can a partial distribution of trust asses be made without a 30 day waiting period?

My stepmother (no children of her own) passed away - with a trust in place leaving the primary home to the 4 living children of her deceased husband (our family home which was paid for prior to their marriage) - specifically listed by each name with address of home within the trust document and home deeded in the name of the trust. The rest of her estate is to be divided equally to her 27 living nieces and nephews. Executor/Successor trustee is one of those nephews. There is no mortgage on property; no other liabilities/creditors and total value of estate is below the IRS estate tax requirement. The successor trustee says he cannot just re-deed the property to the named four children without sending a notice to all 31 total beneficiaries asking if anyone has an objection to him doing a 'partial distribution'. DOD Appraisal has been done. Is there a legal code that explains this 30 day notice requirement?