See Olson v. United States , 292 U.S. 246, 256 (1934) (“Considerations that may not reasonably be held to affect market value are excluded.”); see, e.g., 4.85 Acres , 546 F.3d at 619 (requiring “. . . separate findings of the comparability of each of the proffered comparable properties to the [subject] property ” (quoting United States v. 68.94 Acres of Land , 918 F.2d 389, 399 (3d Cir. 1990))).