I would be interested to know if you've heard of a sale to a child of a mortgage-burdened home of the parents. In this cozy arrangement, parents sell property to an adult child or to a specially designed trust for the long-term benefit of the younger generation and then lease the property back.
The parents get:
Tax-free cash or out from under the mortgage.
A place to live.
The purchasers get rental income that, for tax purposes, is generally offset by related business expenses.