What you suggest is on the darker side of grey and you should be very very careful HOW you word suggestions like that to people who may one day be questioned about their actions.
Having said that, the following things come to mind. 1. pass through accounts are available for a small fee of 1-3% depending on transaction size, should a party wish to move legitimate funds for legitimate reasons of privacy. 2. Gold coins are a very private way of storing and moving wealth. Private (non government) storage facilities are available on several continents, and again, pass through can be used for a further layer of privacy. 3. Moving the properties into foreign companies or trusts may generate tax liabilities and fees that make the operation unpalatable. Be sure that you understand ALL of the costs before you start. 4. I don't recommend working with family or close friends unless it is urgent. If even the smallest thing goes wrong, you will never hear the end of it.