$10.$ Angle borrowed $$600,000$ and signed a note payable to Calif. Savings and Loan to buy a house in Pomona. The note was indorsed in blank and transferred several times $$without recourse$$ before Angle fell behind in payments. East County Loan Servicing, LLP initiated foreclosure for Covina Federal Bank. Angle filed an action in Los Angeles County courts to block it arguing that East Loan Service could not foreclose because Corona Federal, not East County Loan Service, owned the note. What law applies$>$