I know a bit about it... It depends on what your question is if I can help... but I've got class, so I won't be back for an hour and a half.
It is a long and lengthy process where a lawyer is pretty much necessary for SS to dispurse funds. A friend of mine is in the process (has been rejected twice and now hired a lawyer for the court appeal) and the lawyer visited seemed to have a good understanding of how the SSA thought. From what I understand, lawyers only get a state-set percentage of backpayments plus their expenses - not a penny of any future payments. That is pretty much all I know ... hope it helps.