Church handbook allows deceased women to be sealed to multiple men.
General Handbook: Serving in The Church of Jesus Christ of Latter-day Saints, (Salt Lake City: Church of Jesus Christ of Latter-day Saints, 2021), 38.4.1.7
A deceased woman may be sealed to all men to whom she was legally married during her life. However, if she was sealed to a husband during her life, all her husbands must be deceased before she can be sealed to a husband to whom she was not sealed during life.