The organizers from A New Leaf who worked with me were wonderful. The arrangement is that there is a "lead" person plus one or two additional workers. Each person has different strengths, and my lead person was very helpful with getting the right people in for what I needed done and arranging for each person to work to their strengths.
I also have to say that everyone pitched right in to do whatever needed to be done. At times that meant packing things, or going through stacks of papers, or even helping to move furniture around. By the end we had given away, recycled, or thrown out tons of stuff, and pretty much everything that remains has a place it belongs in the house. Much neater, more organized, and cleaner!