I am planning for a family trip in March 2016, and my aunt suggested that we stay in Marriott hotels since we can use the Friends and Family rate. She worked at Marriott for a long time. Assuming the MMF is an rate eligibility and not a per room rate, I think I should be able to book multiple rooms (3) as long as the reservation is under me. The website has allows me to book 3 under the MMF code, but I just want to be sure. Have anyone ever book multiple rooms under the MMF rate? Thanks!