Black is purchasing a house under a real estate mortagage held by the white mortgage, black is obligated to make a payment to white mortgage company each month. Part of the payment is for interest , another part reduces the mortgage balance and the third part is deposited in the escrow account to pay taxes and insurance. Black sell his house to gray, with gray agreeing to take over the motgage payment. if gray defults, can white mortgage co. take action to recover from black?