From the article:
In her later years, she lived mostly off the income from her apartment, which she sold cheaply more than 30 years ago to a lawyer, Andre-Francois Raffray.
He had agreed to make monthly payments on the apartment in exchange for taking possession when she died, but never got to do so. He died more than a year ago at 77; his family was required to keep making the payments.
So there's one example.
I would even be a bit wary about life insurance on someone who wasn't your spouse.