For those of you expecting to launder 1,000,000 LP miles in one shot remember two very important things:
1. The maximum number of Marriott points that can be converted at any one time is 30,000 points, which converts to 10,000 miles.
2. From the Marriott Rewards terms and conditions:
A member may order a maximum of two mileage rewards in any calendar year.
In other words, at a limit of 60,000 points per year, it will take you 33+ years to launder your 2,000,000 points back to miles.