The best hope is Wills, a joint-venture product between the St James's Palace and (now-defunct) Kensington Palace subsidiaries.

ECONOMIST: House of Windsor

Probate court fights over wills, trusts and estates not to mention joint bank accounts, real estate deeds and gifts are quite common in a wide range of estates, from billionaire estates like this one to even modest estates of no more than a hundred thousand dollars.

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