We have a real example in the United States called Trump,

Get someone to buy a piece of real estate at allow price who does it anonymously and set it up also to support the valuation of the same piece of real estate at a new inflated price. Tada! You have just laundered some Russian money just by refusing to ask money source questions.

And they real trick is make sure every single piece of real estate is a separate pass-through-LLC as than the IRS is hampered by not having enough audit staff to even examine it.

You think I am joking....not really ask an IRS return examiner.

World-wide one of the easiest ways to launder money still remains the real estate buying and selling.