@abctax55 "I would hold on to it for a while until there's further guidance"

OK, here's some further guidance. Since they can't get it back from everybody, they aren't going to spin their wheels trying to get it back from a few.  

The original post says, "her estate administrator received a $1200 stimulus payment."  Was it a check? The early payments were direct deposit, but if someone died in 2019 that account should have been closed by now, with remaining funds placed in an estate account.  The administrator doesn't have to cash the check, but is acting in a fiduciary capacity for the beneficiaries.  So before sending it back, they should be asked their opinion.  

(And of course, "stimulus" is a word left over from 2008. I'll pay $100 for every time it's used in the CARES Act.  We might as well call $600 weekly unemployment checks a "stimulus."  But those PPE "loans" that are really "grants" -- there's a stimulus for you.)