A Representative Payee (legal document administered by the Social Security Administration) can be executed. You do not need an attorney for this. The form can be found at www.ssa.gov and then do a search. Be sure to read the instructions. The "extra income" as you put it, can only be used on behalf of the person receiving the benefit and used for certain expenses (in other words, you can't just take the money and purchase luxury items--doing so is considered fraud and is a felony).
