I think it is super important that you give this information to lawyer who makes your will and no one else. Especially not your spouse. Why? Statistically, 30% of spouses cheat and get deeply enamored in affairs where anything can happen. It's one of the most fascinating facets of human relationship. Most people think it will never happen to them but it is extraordinarily random with no rhyme or reason. There are people who donated their kidney to their spouse and even that didn't prevent affairs. So, when it comes to spouses, you are always tossing a biased coin, every day. In Western world, the chanced that you will be eventually end up divorced is 50%. The smartest and most desirable people, everyone from von Neumann to Brad Pitt, have ended up in affairs and divorces.