How to Set a Walk-Away Number Before Mediation
How to define the floor below which litigating is genuinely the better option — before the pressure of the room can move it.
Mediation applies real pressure: a long day, a mediator relaying selectively framed offers, and a natural urge to just get it over with. Without a number decided in advance, that pressure can push you into accepting terms worse than your actual alternative. A walk-away number fixes that by defining, ahead of time, the point below which continuing to litigate is genuinely the better choice.
The number should come from the same probability-weighted math behind your case's expected value, not from a gut feel formed in the room. Setting it before mediation — on paper, with its basis written down — is what keeps it stable when the day gets long.
Start from your BATNA, not your target
Your BATNA — best alternative to a negotiated agreement — is the expected value of your next-best path if mediation doesn't resolve the case, usually continuing to litigate toward trial, net of the cost and time that path will take. Your walk-away number should sit at or slightly above your discounted BATNA, so you never accept a mediated outcome that leaves you worse off than simply walking out and litigating.
Build the number from the same inputs as your case's expected value
Because the walk-away number is a floor derived from analysis, it should be built from the same components as any expected-value estimate, not treated as a separate exercise.
- The damages base and the probability dials on each contested element or claim.
- The litigation cost remaining to reach trial (and, if relevant, appeal), and the time that path is expected to take.
- Any material non-monetary factors — confidentiality, an ongoing relationship, precedent value — converted to a rough dollar-equivalent where they genuinely affect the comparison.
Add a margin for what mediation day itself can't fix
Some risks persist even after a favorable outcome and are easy to forget in the pressure of the room.
- Appellate exposure that survives a win at trial and could still unwind or reduce the recovery later.
- Collectability risk — a defendant's ability to actually pay a judgment, independent of whether you prevail on the merits.
- The ongoing opportunity cost of your own time and your team's attention if the matter continues past mediation.
Separate your walk-away number from your opening number
Your opening ask is a negotiation and anchoring tactic; your walk-away number is an analytical floor. Keep them written down separately so the negotiation posture of the day never quietly erodes the floor. The walk-away number should only move if something changes the underlying dials — not because the mediator's room pressure made it feel reasonable to lower.
When to actually update the number mid-session
There are legitimate reasons to revise the number during the day — but they should be traceable to new information, not fatigue.
- The other side discloses a fact that genuinely changes a probability estimate on a contested element.
- A credible offer structure — a structured settlement or a high-low agreement — changes the effective present value of what's on the table, even if the headline figure looks similar.
- The mediator relays information about the other side's position that is specific and credible enough to change your read of the case, not just general encouragement to move.
- Isn't a walk-away number just my BATNA?
- Closely related but not identical. The walk-away number starts from your discounted BATNA and then adds practical, mediation-day-specific considerations like appellate exposure and collectability risk that don't show up in a bare BATNA calculation.
- Should I ever tell the mediator my walk-away number?
- That's a strategic call outside the scope of this guide. Mediators often need some signal for reality-testing purposes without necessarily hearing your exact floor.
- What if the best offer at mediation is still below my walk-away number?
- If nothing has changed the underlying dials, the math says the better path is continuing toward the next stage of litigation — unless something material during the session genuinely changes those assumptions.
This page is an educational explainer, not legal advice, and creates no attorney–client relationship. Juricratic is a simulation engine: every probability-like figure is a dial you set, not a calibrated prediction. Verify every rule, deadline, and figure against the authorities and orders that govern your matter.
Stop estimating one number at a time.
Juricratic models the whole matter as a solvable game and runs it thousands of times — so the settlement value, the risk, and the optimal line all move together when the facts do.
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