A settlement should follow the investigation—not replace it

Before a crash claim becomes final, the claimant should understand what is being paid, who is being released, which claims are disappearing, what insurance remains, and what amount will actually remain after valid reimbursement obligations and costs.

A release is designed to close doors. Do not sign—or unconditionally accept settlement terms—while still trying to determine which doors exist.

A reasonably developed settlement file ordinarily includes:

liability map
comparative-fault analysis
all potentially responsible parties
complete insurance search
UM/UIM review
stacking analysis
medical chronology
future medical assessment
damages ledger
reimbursement map
estimated net recovery
proposed released parties and claims

A Montana settlement can become binding before the formal release is signed

Montana applies ordinary contract principles to settlement agreements.

Hetherington: unconditional offer and unconditional acceptance

In Hetherington v. Ford Motor Co., 257 Mont. 395, 849 P.2d 1039 (1993), the parties agreed to the amount of the settlement and a full release of claims.

The Montana Supreme Court held that the settlement was binding even though formal release paperwork had not yet been executed.

Do not assume the signature creates the settlement. A binding settlement may already exist if the parties have manifested unconditional agreement to the essential terms.

Lockhead and Dambrowski

Lockhead v. Weinstein, 2003 MT 360, and Dambrowski v. Champion International Corp., 2003 MT 233, reinforce that a later undisclosed intention not to be bound generally does not undo an agreement already formed through manifested assent.

If signature is intended to be a condition of settlement, make that condition explicit before acceptance. State that the matter remains subject to approval and execution of an acceptable written settlement agreement or release.

But the parties still must agree on the essential terms

Hetherington does not mean that agreement on a dollar amount alone always creates a settlement.

Murphy v. Home Depot

In Murphy v. Home Depot, 2012 MT 23, 364 Mont. 27, 270 P.3d 72, the parties agreed on the settlement amount but disagreed about the claims that would be released.

Home Depot sought a broad global release. Murphy proposed language limited to injuries, damages and losses arising from the particular incident and expressly excluded other claims.

The Montana Supreme Court held there was no binding settlement. The parties had not mutually agreed on the same essential release terms.

The practical rule is therefore:

Settlement requires agreement on the material bargain. Where the scope of released claims, released parties, indemnity or another material term remains genuinely unresolved, agreement on money alone may not establish mutual consent.

Know the material settlement terms before accepting

A settlement is more than a number.

Identify:

amount to be paid
person or entity making payment
each released person
each released business or entity
each released claim
bodily injury versus property damage
known injuries
unknown injuries
future claims
derivative claims
estate claims
confidentiality
indemnity obligations
lien responsibility
Medicare / Medicaid handling
dismissal terms
UM/UIM reservation
claims against other tortfeasors
nonmonetary obligations
payment method and timing

“I accept the policy limits” may not identify the entire bargain. Determine what is being exchanged for those limits before communicating unconditional acceptance.

Read the release as a map of the rights that will disappear

Liability releases frequently use broad language extending beyond the named driver or the single issue discussed during negotiations.

Audit every released party

driver
vehicle owner
employer
business entity
affiliate
agent
employee
insurer
successor
assign
unnamed persons
unknown entities

Audit every released claim

bodily injury
property damage
known injury
unknown injury
future treatment
lost earnings
future earning capacity
consortium
wrongful death
survival claim
other derivative claim
first-party insurance claim

Broad boilerplate can release more than the negotiations addressed. Compare the proposed release line by line against the liability and insurance map.

A later diagnosis does not automatically reopen a completed settlement

Hanson v. Oljar, 231 Mont. 272, 752 P.2d 187 (1988), arose from a Montana motor-vehicle crash and a broad release encompassing known and unknown injury claims.

Under the facts before it, the Montana Supreme Court enforced the clear release.

Do not assume a newly discovered injury automatically defeats unknown-injury language. The safer approach is to develop the medical future before making the settlement final.

Before settling bodily injury, ask:

Are important diagnostic tests still pending?
Has the diagnosis stabilized?
Has surgery been recommended?
Are injections or specialist evaluations pending?
Are symptoms continuing to change?
Is permanent impairment possible?
Is future medical care reasonably expected?
Is future work capacity understood?
Are major medical opinions still missing?

A release can sometimes be rescinded—but only on recognized grounds

A completed release is a contract.

MCA § 28-2-1711 permits rescission only in the circumstances identified by the statute, including qualifying:

mistake
duress
menace
fraud
undue influence
failure of consideration
invalid consideration
consent of all parties

Westfall

Westfall v. Motors Insurance Corp., 140 Mont. 564, 374 P.2d 96 (1962), recognizes a release as a contract subject to ordinary contract rescission principles, including qualifying fraud or mistake of fact.

Prompt action and restoration

MCA § 28-2-1713 generally requires a rescinding party to act promptly after discovering the facts supporting rescission and to restore—or offer to restore—what was received under the agreement.

Section 28-2-1715 also restricts rescission for mistake when the other party cannot be restored substantially to the position that existed before the contract.

Rescission is a remedy for a legally defective agreement—not ordinary settlement regret. Prevention is substantially safer than attempting to unwind a completed release.

Montana permits partial settlement with one tortfeasor

MCA § 27-1-704 governs a release or covenant not to sue given to one of multiple persons liable in tort for the same injury, death, damage or loss.

The statute provides that the release:

does not discharge another tortfeasor from that person's several pro rata share unless the release provides otherwise;
reduces the aggregate claim against remaining tortfeasors by the percentage of fault ultimately attributed to the settling tortfeasor; and
discharges the settling tortfeasor from contribution liability.

Partial settlement is possible. A claimant can settle with one responsible party without necessarily relinquishing every claim against everyone else.

But § 27-1-704 expressly says “unless the release provides otherwise.” Overbroad drafting can release parties the claimant intended to preserve.

A partial settlement changes the remaining comparative-fault case

The settling tortfeasor's conduct does not necessarily vanish merely because that defendant has purchased peace.

If the trier of fact attributes fault to the settling tortfeasor, § 27-1-704 reduces the aggregate claim against the remaining tortfeasors by that percentage.

A partial settlement is not just a dollars decision. It also changes the comparative-fault structure of the remaining case.

Before settling with one defendant, evaluate:

strength of the claim against that party
likely fault percentage
available insurance
assets and collectibility
remaining defendants
remaining coverage
effect of the percentage reduction
release language preserving other claims

Protect UM/UIM before releasing the tortfeasor

A liability settlement can affect an injured person's UIM insurer because the first-party carrier may possess subrogation rights against the person being released.

Sorensen: no automatic forfeiture without material prejudice

In Sorensen v. Farmers Insurance Exchange, 279 Mont. 291, 927 P.2d 1002 (1996), the insured settled with the tortfeasor and executed a release without obtaining advance permission from the UIM carrier.

Montana adopted a no-prejudice rule.

The UIM claim is not automatically forfeited on a technicality. To foreclose otherwise applicable UIM coverage based on the unauthorized settlement, the insurer must establish material prejudice.

Sorensen is a safety net—not the preferred workflow. Notify the UIM carrier before settlement, identify its subrogation position, and obtain the carrier's written response where possible.

Augustine rejects literal exhaustion—but the UIM carrier receives the appropriate credit

Augustine v. Simonson, 283 Mont. 259, 940 P.2d 116 (1997), addressed policy language requiring exhaustion of the tortfeasor's liability insurance before UIM benefits.

The Montana Supreme Court rejected literal exhaustion as an absolute prerequisite to pursuing UIM.

The insured may proceed without collecting every available tortfeasor dollar. But the UIM carrier receives the appropriate credit for the tortfeasor's liability limit under Augustine's framework.

For an individual claimant, if the insured voluntarily settles below the tortfeasor's available liability limit, the insured generally bears that gap rather than requiring the UIM carrier to fill it.

Example: a below-limits settlement can accelerate resolution, but it does not necessarily transfer the voluntarily surrendered liability dollars to the UIM carrier.

Gross settlement is not the same as net recovery

Before evaluating the practical value of settlement, identify every legitimate reimbursement or repayment interest.

MedPay
health insurance
self-funded ERISA plan
Medicare
Medicare Advantage
prescription benefit plan
Montana Medicaid
workers' compensation
provider claims
assignments
other statutory liens

Know the estimated net recovery before saying yes. Settlement amount, attorney fees, litigation expenses and legally valid reimbursement obligations belong in the decision before acceptance.

Use Montana's current medical-damages measure when evaluating settlement

For modern bodily-injury claims, MCA § 27-1-308 distinguishes original charges, adjustments, amounts paid, amounts legally owing and future qualifying medical expenses.

Do not build settlement value from chargemaster totals alone. Use the current-law damages ledger developed under Montana's medical-damages statute.

Montana's time-limited-demand statute requires precision

MCA § 33-18-251 creates a detailed statutory process for a time-limited offer to settle a claim within applicable liability insurance limits.

This is not a generic “pay within 10 days” demand. A demand intended to create the statutory settlement opportunity must satisfy the statute's requirements.

The demand must:

reference MCA § 33-18-251
be in writing
state “time sensitive” at the top of the first page containing the material terms
be sent certified mail, return receipt requested
be directed to the insurer of the allegedly responsible party
identify the allegedly responsible party
provide at least 60 days for acceptance
account for the statutory weekend/holiday rule
state the monetary payment requested
identify other consideration requested
state the date of the loss
state the location of the loss
reasonably describe all known injuries
reasonably describe known damages and losses
identify every party to be released
identify every claim to be released
provide Medicare information
provide Medicaid information
address other federal/state benefit-program eligibility
disclose known liens
disclose assignments

The statutory period begins on actual receipt through certified mail. Do not calculate the acceptance period merely from the date the demand was drafted or mailed.

The demand must be supported by enough evidence for fair evaluation

Section 33-18-251 requires the demand to be accompanied by available supporting material sufficient to give the insurer a fair and reasonable opportunity to investigate liability and damages.

Depending on the claim, that includes:

liability records
crash reports and supporting evidence
medical records
medical invoices
billing statements
records concerning claimed emotional distress
relevant preexisting-condition records required by the statute
wage records
employer records
tax records where earnings loss is claimed
lien information
assignment information

The demand defines the asserted settlement opportunity. Section 33-18-251 limits later extracontractual reliance on injuries, damages and losses that were not identified and supported as the statute requires.

An insurer may seek clarification without automatically rejecting the demand

On receiving a statutory time-limited demand, the insurer may:

provide proposed settlement language
provide proposed release language
request clarification of material terms
seek additional lien information
seek subrogation information
seek damages information
seek proof of standing to release claims
seek medical bills and records
seek information concerning preexisting conditions
seek other relevant facts

A qualifying request is not itself a counteroffer or rejection. The statute also extends the demand period as provided by subsection (4).

If a valid lien is identified during the demand period, subsection (5) requires cooperation and stays the demand period while the lien is resolved in accordance with the statute.

Strict compliance matters if the demand later becomes part of an extracontractual case

MCA § 33-18-251(7) provides significant consequences for a demand that does not strictly comply.

A noncompliant demand may not later serve as the reasonable settlement opportunity supporting extracontractual damages. The statute also makes such a demand inadmissible in the specified extracontractual action against the liability insurer.

The insurer also is not liable for extracontractual damages arising from injuries, damages or losses that were not identified in the demand and supported by the required records and information.

The statute contains an additional protection for an unrepresented claimant

If an insurer knows or reasonably believes a claimant making a time-limited demand is not represented by counsel and determines that the demand does not strictly comply with specified statutory requirements, § 33-18-251(8) requires the insurer to notify the claimant of the deficiencies within 10 business days.

The statute then provides for extension of the demand period.

This does not convert an incomplete demand into a compliant demand. It creates a statutory notice-and-correction procedure for the qualifying unrepresented claimant.

Perform a line-by-line release audit

Provision	Question
Released parties	Exactly which people, businesses, employers, insurers, agents, affiliates, successors and assigns are being released?
Released claims	Bodily injury, property damage, derivative claims, estate claims, unknown injuries, future claims, or everything arising from the occurrence?
Unknown injuries	Does the release expressly extinguish injuries not yet diagnosed?
Other tortfeasors	Does the language preserve every intended remaining defendant?
UM/UIM	Are first-party claims expressly preserved when appropriate?
Subrogation	Has any first-party carrier asserted rights against the tortfeasor?
Reimbursement	Who is responsible for Medicare, Medicaid, ERISA, workers' compensation and other valid repayment claims?
Indemnity	Is the claimant agreeing to protect the settling party against later reimbursement claims?
Confidentiality	What may not be disclosed, to whom, and what is the consequence of breach?
No admission	Is the payment expressly characterized as compromise rather than admission?
Dismissal	Which claims and defendants will be dismissed and with what prejudice?
Payment	Who pays, how much, by what method, to whom, and when?

Citizen pre-settlement workflow

Finish the liability investigation. Identify every potentially responsible person and entity and evaluate comparative fault.

Finish the insurance search. Identify driver, owner, employer, commercial, umbrella, excess, rideshare, rental and other applicable coverage.

Review the claimant's own automobile policies. Identify UM, UIM, MedPay and potentially stackable coverage.

Develop the medical future. Resolve major diagnostic uncertainty, expected treatment, permanent impairment and work-capacity issues as reasonably possible.

Complete the damages ledger. Use current Montana law for medical, wage, earning-capacity, noneconomic and property damages.

Complete the reimbursement map. Identify MedPay, health insurance, ERISA, Medicare, Medicaid, workers' compensation and other repayment interests.

Estimate net recovery. Account for fees, litigation costs and valid repayment obligations.

Decide whether settlement is full or partial. Identify exactly which defendants and claims are intended to end.

Identify every released party. Compare the proposed list with the complete liability and coverage map.

Identify every released claim. Separate bodily injury, property, derivative, estate and first-party claims.

Protect UM/UIM. Notify the carrier, address subrogation and obtain its position before releasing the tortfeasor.

Evaluate partial-settlement fault consequences. Estimate how the settling party's percentage may reduce the remaining claim.

Review material terms before acceptance. Do not postpone release analysis until after saying “I accept.”

Use conditional language when terms remain unresolved. Identify the unresolved conditions and make clear whether execution of an acceptable written agreement is required.

Audit the final release against the actual settlement. Reject added parties, claims, indemnities or restrictions not agreed upon.

Resolve reimbursement before distribution. Obtain final figures and written satisfaction where appropriate.

Preserve the permanent settlement file. Keep the demand, acceptance, release, checks, correspondence, UIM communications, lien resolutions and final accounting.

Final pre-settlement checklist

All responsible parties identified?
All liability coverage identified?
Umbrella and excess investigated?
Employer/commercial coverage investigated?
UM/UIM identified?
Stacking evaluated?
MedPay identified?
Medical diagnosis reasonably developed?
Future care reasonably understood?
Future work loss evaluated?
Comparative fault evaluated?
Health-plan reimbursement identified?
ERISA funding status determined?
Medicare reviewed?
Medicaid reviewed?
Workers' compensation reviewed?
Every released party intentionally included?
Every released claim intentionally included?
Other tortfeasors preserved?
UM/UIM preserved?
Unknown-injury language understood?
Indemnity understood?
Confidentiality understood?
Expected net recovery calculated?
Acceptance conditions clear?

If an important item remains unknown, determine whether the claim is actually ready to become final.

Common Montana settlement mistakes

Assuming nothing binds until a release is signed.
Assuming a dollar amount alone settles every material term.
Unconditionally accepting before reviewing release scope.
Failing to state that signature is a condition when intended.
Settling before finding all insurance.
Settling while major medical issues remain unresolved.
Signing unknown-injury language without understanding it.
Releasing an employer or owner unintentionally.
Using an overbroad “all persons” release.
Ignoring the settling tortfeasor's later fault percentage.
Releasing the tortfeasor before addressing UIM.
Treating Sorensen as permission to skip UIM notice.
Settling below limits without accounting for Augustine's UIM credit.
Ignoring MedPay or stacking.
Ignoring Medicare, Medicaid or ERISA reimbursement.
Evaluating only the gross settlement.
Ignoring lien indemnity language.
Sending a purported statutory demand with less than 60 days.
Failing to use certified mail, return receipt requested.
Failing to place “time sensitive” at the top of the first page.
Failing to identify parties and claims to be released.
Failing to provide required medical and wage support.
Treating a clarification request automatically as a rejection.
Assuming a noncompliant demand can support extracontractual exposure.
Assuming a later diagnosis automatically rescinds a release.
Waiting after discovering possible rescission grounds.
Failing to offer restoration when Montana rescission law requires it.

Montana authority map

Montana Supreme Court Hetherington v. Ford Motor Co., 257 Mont. 395, 849 P.2d 1039 (1993)

Leading settlement-formation authority. An unconditional settlement offer accepted unconditionally can create a binding agreement before execution of formal releases where the material terms already have been agreed.

Montana Supreme Court Dambrowski v. Champion International Corp., 2003 MT 233, 317 Mont. 218, 76 P.3d 1080

Reaffirms that settlement agreements are contracts and that later formal release processing does not necessarily postpone formation when the essential bargain already is complete.

Montana Supreme Court Lockhead v. Weinstein, 2003 MT 360, 319 Mont. 62, 81 P.3d 1284

Reaffirms manifested assent: an undisclosed intention not to be bound ordinarily does not defeat an unconditional acceptance already communicated.

Montana Supreme Court Murphy v. Home Depot, 2012 MT 23, 364 Mont. 27, 270 P.3d 72

Important limit on Hetherington. No binding settlement existed where the parties agreed on the amount but had not reached mutual agreement on the essential scope of claims to be released.

Montana Supreme Court Hanson v. Oljar, 231 Mont. 272, 752 P.2d 187 (1988)

Automobile-release authority enforcing the clear release before the Court under the facts presented, including broad known-and-unknown- injury language, and illustrating why later dissatisfaction or diagnosis does not itself undo a settlement.

Montana Supreme Court Westfall v. Motors Insurance Corp., 140 Mont. 564, 374 P.2d 96 (1962)

Establishes that a release is a contract and can be challenged under recognized contract-rescission doctrines, including qualifying fraud or mistake of fact.

Primary Law · MCA §§ 28-2-1711, 28-2-1713 & 28-2-1715 Montana rescission framework

Defines permissible grounds for rescission, requires prompt action and restoration or an offer of restoration in qualifying cases, and limits rescission for mistake when substantial restoration is impossible.

Primary Law · MCA § 27-1-704 Release of one tortfeasor

A release ordinarily preserves claims against other tortfeasors unless it says otherwise, reduces the remaining aggregate claim by the settling tortfeasor's allocated fault, and ends that tortfeasor's contribution exposure.

Montana Supreme Court Sorensen v. Farmers Insurance Exchange, 279 Mont. 291, 927 P.2d 1002 (1996)

Adopts Montana's no-prejudice rule for UIM. An unauthorized liability settlement does not automatically forfeit otherwise applicable UIM benefits; the UIM carrier must establish material prejudice.

Montana Supreme Court Augustine v. Simonson, 283 Mont. 259, 940 P.2d 116 (1997)

Rejects literal exhaustion of liability limits as an absolute prerequisite to UIM. The UIM carrier receives the appropriate liability-limit credit, leaving the insured responsible for a voluntarily created below-limits gap in the ordinary individual claim.

Primary Law · MCA § 33-18-251 Statutory time-limited settlement demands

Establishes detailed form, delivery, minimum 60-day timing, material terms, medical and wage documentation, lien disclosure, clarification, extension, lien-stay and strict-compliance requirements.

Primary Law · MCA § 27-1-308 Current medical-damages measure

Governs modern Montana medical-services damages and should be used in settlement valuation rather than simply totaling original billed charges.

Source-control rule: Current Montana statutes and official court opinions control. This guide summarizes the law for public education; verify the operative policy, actual settlement communications, release language, statute, complete opinion, lien/reimbursement rights, and current treatment before legal reliance.

Frequently asked questions

Can a Montana settlement be binding before I sign the release?

Yes. If there is an unconditional offer and unconditional acceptance of all essential terms, Montana law can recognize a binding settlement before formal paperwork is executed.

Does agreeing on the settlement amount automatically mean the case is settled?

Not necessarily. Murphy demonstrates that there must be mutual agreement on essential terms. If the parties materially disagree over which claims will be released, a dollar agreement alone may not create settlement.

What if I want the settlement to be binding only after I approve the release?

Make that condition explicit during negotiations before any purported final acceptance.

If I release one driver, are all other defendants automatically released?

No. MCA § 27-1-704 ordinarily preserves the several liability of other tortfeasors unless the release provides otherwise.

What happens to the remaining claim after a partial settlement?

The aggregate claim against remaining tortfeasors is reduced by the percentage of fault ultimately attributed to the settling tortfeasor.

Can I settle the liability claim and still pursue UIM?

Potentially yes. The prudent practice is to notify the UIM carrier, address subrogation and consent issues, and preserve the first-party claim before signing the liability release.

What if I already released the tortfeasor without UIM consent?

Sorensen provides that otherwise applicable UIM coverage is not automatically forfeited. The insurer must establish material prejudice from the settlement.

Must I collect every liability-policy dollar before pursuing UIM?

No. Augustine rejects literal exhaustion. But the UIM carrier receives the appropriate liability-limit credit, so an individual claimant who settles below available limits ordinarily bears the resulting gap.

Can I reopen the claim if doctors discover another injury after settlement?

A new diagnosis does not automatically undo a release. Rescission requires a recognized legal basis and compliance with Montana's statutory requirements.

How quickly must I act if I believe the release should be rescinded?

Section 28-2-1713 generally requires prompt action after discovery of the facts supporting rescission, together with restoration or an offer to restore what was received where required.

How long must a Montana statutory time-limited demand remain open?

At least 60 days, subject to the statute's weekend/holiday, receipt, clarification, extension and lien-stay provisions.

When does the 60-day period begin?

Under § 33-18-251, the statutory acceptance period begins when the insurer actually receives the demand through certified mail.

Does an insurer's request for more information automatically reject the demand?

No. A qualifying request for clarification, additional information, or proposed release language is not automatically a counteroffer or rejection and can extend the demand period under the statute.

What happens if the demand does not strictly comply with § 33-18-251?

Subsection (7) provides that the noncompliant demand may not be treated as the insurer's reasonable settlement opportunity and may not be admitted in the specified extracontractual action.

Should reimbursement claims be investigated before settlement?

Yes. Medicare, Medicaid, ERISA, workers' compensation, MedPay and other valid repayment obligations can materially change the claimant's actual net recovery.

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Montana Settlement, Release & Time-Limited Demands