I know that the Marriott credit card offers 15 elite nights a year, but so does the Marriott Business credit card. I was wondering if a person can do BOTH of them to get 30 elite nights a year automatically granted total? According to the terms and conditions, a card member cannot hold two Chase cards for the same rewards program. This is why you CAN hold the Ritz and Marriott credit cards by technicality. But what about two Marriott (and even the Ritz, too)?