How to create Generational Wealth Using Life Insurance?

Hi,

My aunt who is longer with us used to sell life insurance. She worked with specialized cases where people used life insurance for generational wealth.

For example one sale over 15 years ago took her over a year and was her primary focus. It involved many lawyers, doctors, and other specialized people. There were over 20 family members and a few hundred million in combined coverage. When the sale was complete she told me the family will make tens of millions off these policies and explained to me they are creating generational wealth using life insurance products.

Would someone walk me though how this works, what companies do this, and how you recommend I structure it?

Do you have a recommended reading for me you could share?

The details I recall were multiple policies of various terms for the younger ones up to $10M. And for the most senior members of the family whole life to preserve capital and prevent inheritance tax. But that is all I recall.

Thank you!