WESTLAKE VILLAGE, Calif.--(BUSINESS WIRE)--PennyMac Financial Services, Inc. (NYSE: PFSI) (Pennymac) and Vesta Innovations, Inc. (Vesta) announced today a strategic partnership to streamline the mortgage application process and enhance the customer experience. Pennymac, a top mortgage lender and servicer, is the first large mortgage client to go live on Vesta's modern platform, marking a significant industry milestone. As part of this venture, Pennymac has made a long-term minority equity inves. ...