I take an annual trip as part of a loosely organized group of anywhere from 6 to 12 people. I THINK it's understood by all of us that no one of us is the "organizer," though one of us might gather the commitments and put a dive op's requested deposit on their credit card, while another one of us might take care of the lodging arrangements, a rental car, or whatever. I would not hold any one of us responsible for anything that goes wrong or turned out not to be what I expected. I think that's the risk we assume for choosing to do it ourselves and NOT through a professional trip organizer.
By the way, "SettleUp" is a useful app for recording the expenses of each person in a group and splitting costs according to which people in the group received the benefit from which expenditures.
By the way, "SettleUp" is a useful app for recording the expenses of each person in a group and splitting costs according to which people in the group received the benefit from which expenditures.