Until 1980, it was generally believed that an installment contract set up with remaining payments cancelled after the death of the contract seller would be treated as a transfer with a retained life estate. That was sufficient to discourage use of such a concept.
Harl, Neil E.
"Self-Cancelling Installment Notes,"
Agricultural Law Digest: Vol. 1
, Article 1.
Available at: https://lib.dr.iastate.edu/aglawdigest/vol1/iss17/1