Eminent domain litigation splits into two distinct postures that share the same constitutional core but move through very different procedures. A direct condemnation is the government-initiated case: the state or a public entity formally exercises its power to take property for public use, and the fight is almost entirely about just compensation, what the property is actually worth. An inverse condemnation case runs the opposite direction: the property owner sues because government action, a flooding project, a regulatory restriction, or a physical invasion like utility lines or construction, has effectively taken or damaged the property without any formal condemnation proceeding ever being filed, so the owner must first establish that a taking happened at all before compensation is even on the table.

Once liability is established, the case becomes an appraisal fight fought almost entirely through competing experts, since fair market value is inherently a matter of professional opinion rather than fixed fact. Highest-and-best-use arguments, what the property could have been developed into, not just what it currently is, often separate a modest award from a large one, and severance damages to the remaining, untaken portion of a larger parcel can exceed the value of the parcel actually taken. Regulatory takings claims add another layer of difficulty, since courts weigh the economic impact of the regulation against the owner's investment-backed expectations and the character of the government action, a fact-intensive balancing test that resists bright-line rules.

Liability and valuation are analytically separate fights that move on different timelines: in an inverse condemnation case, the owner must first win on whether a taking happened at all before any appraisal question is reached, while in a direct condemnation the taking is conceded and the entire case is the appraisal fight from day one. Highest-and-best-use testimony is where the real money usually is, since the gap between a property's current use value and its highest permitted development potential can dwarf the difference between competing appraisers' methodologies. Severance damages to an owner's remaining, untaken land add a second axis to the valuation dispute, and in a partial-taking case can exceed the value of the parcel actually condemned, which is why access, visibility, and remaining-parcel usability are litigated as intensely as the taken parcel itself.