This can be done offline split-screen. What you need is the following:
USB flash drive
Your Main Account & Silver account
Download this save - (http://www.360haven.com/forums/showt...d-2-saves.html)
Extract 1 of the saves from the .rar file; open it up in modio to rehash & resign it to the Silver Account profile; then save it to usb.
Start the game up in offline/Split-screen. Sign in both profiles then start the game. Have the Max money profile trade with your main character all the money it has. Accept the trade and done. your Main character has max money. Quit and save sign out the Silver account. Enjoy.
If you have questions ask (this is my first TUT, so sorry if not clear).