My sister squandered our parents’ millions, then made me a very tempting offer

Dear Quentin,

This story may remind you of a fairy tale — a cautionary one. My financial-whiz parents earned $4 million in 1970s dollars, and retired early. They hoped we three children would go into their business. My older brother and sister did, but I chose college and graduate school, paying for most of it myself as everyone clucked that I’d be poor going that route. 

I…