Sec. 13. (a) The office may contract with an attorney to obtain or enforce a lien under this chapter.
(b) If the office contracts with an attorney under this section, the attorney's fees may not exceed:
(1) seven and five-tenths percent (7.5%) of the office's recovery under the lien if the proceeding to obtain and enforce the lien is not contested; or
(2) ten percent (10%) of the office's recovery under the lien if the proceeding to obtain and enforce the lien is contested.