Why doesn’t anyone ever let someone know if they will be inheriting a lot of money or property?

According to Fran Brochstein (Attorney & Mediator at Fran Brochstein)

People are allowed to change or re-write their wills during their life time. So even if you are included in a will, if the person writes a will later then you might not be included.

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Farewellwords:

Do write and re-write at no extra charge and we ensure your message is delivered in due course with just a tiny contribution.