United States v. 320 Acres of Land , 605 F.2d 762, 798-99 & nn.65-66 (5th Cir. 1979) (citing cases); see, e.g., United States v. 4.85 Acres of Land in Lincoln Cty. , 546 F.3d 613, 618-19 (9th Cir. 2008) (post-acquisition sales) (citing cases).