The Consumer Financial Protection Bureau on Thursday dropped its long-running case against PHH Corp., the mortgage company whose appeal of a $109 million penalty set off an ultimately unsuccessful challenge to the bureau’s independent, single-director leadership structure.

The dismissal comes fives months after a Washington federal appeals court upheld the CFPB’s power structure as constitutional but tossed the penalty against New Jersey-based PHH, sending the case back to the bureau for further review under the Real Estate Settlement Procedures Act, or RESPA.