Unfortunately, depending on state law (and the local Judge who hears the case...) this could also give ELCA a foothold to sue the congregation for control of the property.
This has happened many (MANY) times in similar conditions to Episcopalian, Presbyterian, and other mainline denominational churches trying to leave.
At least ELCA though, doesn't have an amendment to their denominational constitution which claims an "implied trust" on all congregations' properties...(like the 'piscis do...).