The Nevada Supreme Court is expected to take up arguments in a high-profile robo-signing case in which a mortgage processing services firm is challenging the legal authority of the state’s attorney general to hire Cohen Milstein Sellers & Toll on a contingent fee basis.

Lender Processing Services Inc. has petitioned the state’s high court to overturn a ruling that allowed Cohen Milstein’s Betsy Miller to be associated as counsel to Nevada Attorney General Catherine Cortez Masto. Masto has a pending complaint alleging that Lender’s robo-signing of mortgage documents contributed to the state’s economic recession.