Beneficiary of a living trust?

My husband's grandmother ped away a little over a week ago and she had a living trust that had her oldest son as the beneficiary of 50% of it and my husband and his two sisters as the beneficiaries of the other 50% (their dad ped away 6 years ago, so this is his half). We are still waiting to hear anything back on the trust and don't know what we are supposed to do. Are we supposed to just sit and wait until we hear from his uncle? She lived over 500 miles away so it is difficult to find much out. We do know that part of the trust is the house and they have been going through the house and dividing stuff out but shouldn't they be doing that with the consent of my husband and his sisters?