JM 5-15.543
It may occasionally be to the advantage of all concerned to modify or change the estate being condemned. The Land Acquisition Section should be informed promptly of any suggestions which either the United States Attorney or the property owners may have concerning modification, alteration, or change of the estate or description of the property to be condemned, but no alteration of the pleadings may be made except upon receipt of appropriate authorization from the Land Acquisition Section, and consultation with the acquiring agency.
[cited in JM 5-15.650]
[updated April 2018]