I've never made an LNF request, but I found a lower rate for a Marriott I'm considering in SAN for 4/28-4/30. Marriott's lowest rate is a non refundable AP of $145/nt for a "Deluxe" room with a leisure rate of $149/nt for a "Standard" room. The other sight only offers "Standard" rooms for $110.06/nt and uses prepaid vouchers.

Should this request work, and do I need to reserve the non-refundable Marriott AP rate? I'd hate to get stuck with the $145/nt rate, since this particular Marriott isn't really worth that much.

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I decided to reserve the $149/nt rate, submit the form and see what happens. If they don't give it to me and say the $145/nt AP rate would also be ineligible, I guess I'll use my PC Plat status and current Amex $50 back on $250 promo.