LLC might not be a good entity type for retaining cash wealth since you are expected to distribute the profits, like you would a partnership. If you retain your profits in the LLC, you may find yourself in a situation where you have to pay corporate income tax as if you had been an S or C Corp.
I'm not sure what the situation is for cash put into the LLC, but you cannot transfer funds into an LLC for the express purpose of avoiding creditors, tax payments, insolvency proceedings, and so on.
If you want to park money in a bank in an account belonging to a company, an LLC might not be the bests choice. You might want to discuss trust/foundation setups rather than a simple company to find solutions whereby you cease to be the UBO.