Thanks.
I found this, in case anyone sees this in the future:
https://www.irs.gov/pub/irs-pdf/p559.pdf#page=14
Holding period. If you sell or dispose of inherited property that is a capital asset, the gain or loss is considered long-term, regardless of how long you held the property.
(This pub link presently shows a prior tax year, but the draft version of the form for the current year contains the same language.)
