Dude if you're just in it for the money, and need to lose that much in that short of time, it's got to be DRASTIC, and as others have already said, it's NOT THE HEALTHEY WAY to do it. OK disclaimer over. This is what you will need to do:
Eat no more than 700 calories total each day, no exceptions! 400 from protein, 150 from fat, 150 from carbs. Take 1 multivitamin morning, noon and night to help with how crappy you're going to feel. Spread your 700 out over the day, also to help with how crappy you're going to feel. Did I mention how crappy you're going to feel? It's the price you'll have to pay.
You need to know, to lose a pound a day, you will be losing some amount of muscle at that extreme calorie deficit. That's why protein needs to be the bulk of your calorie consumption to minimize muscle loss, while still cutting fat.
You're going to feel like crap, no energy, head aches, achy body, but, you'll need to push through it with two-three hours of high heart rate exercise per day, best split into 1-1.5 hour segments morning and evening.
It's going to SUCK!
Here's the math:
Note: 1 lb of fat = 3500 calories
Normal caloric needs: 2500
Caloric intake: 700
Deficit: 1800
Exercise caloric burn: 2 x 800 = 1600
Total deficit: 1800+1600=3400= 1lb weight loss (mostly fat some muscle)
It?ll be hard earned so don't blow you're $500 on donuts after the big win.