25 U.S.C. § 1779e - Attorney fees

(a) Payment 
At the time the funds are paid to the Indian Nations, from funds authorized to be appropriated pursuant to section 1779c (c) of this title, the Secretary shall pay to the Indian Nations attorneys those fees provided for in the individual tribal attorney fee contracts as approved by the respective Indian Nations.

(b) Limitations 
Notwithstanding subsection (a) of this section, the total fees payable to attorneys under such contracts with an Indian Nation shall not exceed 10 percent of that Indian Nations allocation of funds appropriated under section 1779c (c) of this title.