Equitable Defenses — Laches, Estoppel, Waiver, Judicial Estoppel, Unclean Hands, Acquiescence, and Related Doctrines
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A party can possess a legal right and still lose the ability to enforce it.
Equity developed doctrines that prevent a litigant from insisting upon strict legal rights when the litigant's delay, conduct, representations, silence, acceptance of benefits, inconsistent positions, or misconduct makes enforcement inequitable. Among the most frequently encountered are laches, equitable estoppel, waiver, judicial estoppel, unclean hands, and acquiescence.
These doctrines overlap, but they are not interchangeable. Each asks a different question, requires different proof, and can produce a different result.
Law and Equity in Modern Maryland Practice
Maryland no longer maintains separate courts of law and equity, but the distinction between legal and equitable principles remains important.
A circuit court may administer legal and equitable remedies in the same action. The merger of procedure did not eliminate substantive equitable doctrines.
Equitable defenses are not simply generalized appeals to fairness. Each has identifiable requirements and limitations.
It ordinarily is not enough to argue that enforcement of a right would be "unfair." The facts must support a recognized legal or equitable doctrine.
Laches — You Waited Too Long
Laches addresses unreasonable and prejudicial delay in asserting a right.
It is sometimes described as an equitable statute of limitations, but that shorthand is incomplete.
A statute of limitations establishes a legislatively prescribed period within which an action ordinarily must be commenced. Laches focuses upon the claimant's delay and the prejudice resulting from it.
Important considerations generally include:
• knowledge, actual or attributable, of the right or claim;
• the length and reasonableness of the delay;
• changes occurring during the delay; and
• prejudice to the opposing party.
Time matters, but the calendar alone does not necessarily decide the issue.
Delay Without Prejudice May Not Be Enough
Suppose a person knows of an asserted property right but waits several years before seeking equitable relief.
During that period nothing materially changes. Records remain available. Witnesses remain accessible. The defendant makes no substantial investment in reliance upon the claimant's silence. The defendant's ability to defend the case is not materially impaired.
The delay may be substantial, but the equitable case for laches is weaker if the delay caused no meaningful prejudice.
Change the facts.
During the delay, the defendant spends hundreds of thousands of dollars developing the property in the reasonable belief that the claimant has abandoned the objection. Important witnesses die. Documents disappear. The property changes hands.
The same passage of time now carries very different equitable consequences.
Laches and Statutes of Limitations
The relationship between laches and limitations requires care.
Where an equitable claim closely resembles a legal claim for which the legislature has established a limitations period, that period may provide an important benchmark in evaluating laches.
But the two doctrines should not mechanically be treated as identical.
Nor should a lawyer assume that labeling a claim "equitable" provides a means of avoiding an otherwise applicable limitations period.
Courts look to substance, not merely terminology.
Equitable Estoppel — Your Conduct Caused Someone Else to Rely
Equitable estoppel focuses upon conduct and reliance.
In general terms, a party may be prevented from asserting a right or position when that party, through words, conduct, representations, or sometimes silence when there was a duty to speak, caused another party reasonably to rely upon an apparent state of affairs and materially change position as a result.
The principle is straightforward.
A person should not be permitted to induce another to act in reasonable reliance upon one state of affairs and then, after that reliance produces a disadvantage, insist upon an inconsistent position.
Estoppel Can Arise From What Was Not Said
A misleading representation need not always consist of an affirmative false statement.
Silence can matter when circumstances create a duty to speak.
Suppose one party knows another is proceeding under a mistaken understanding of their legal relationship, realizes that substantial expenditures are being made in reliance upon that understanding, and deliberately remains silent.
Depending upon the relationship and circumstances, that silence may become relevant to estoppel.
But silence by itself is not automatically estoppel.
The issue is whether the circumstances made the silence misleading and whether reasonable detrimental reliance followed.
Equitable Estoppel and Limitations
Estoppel becomes particularly important when a defendant invokes limitations after allegedly causing the plaintiff to delay filing suit.
Suppose an insurer or defendant repeatedly represents that a claim will be resolved, requests additional documentation, asks the claimant to defer litigation while negotiations continue, or otherwise engages in conduct allegedly calculated to induce delay.
The claimant files after the ordinary limitations period has expired.
The claimant may argue that the defendant should be estopped from asserting limitations.
That argument is intensely fact dependent.
Settlement negotiations alone should never be assumed to suspend limitations.
A lawyer who permits limitations to expire merely because negotiations remain cordial is taking an extraordinary risk.
If additional time is required, a properly drafted tolling agreement is ordinarily a much safer solution. Tolling agreements are addressed separately in this Library.
Waiver — You Gave Up the Right
Waiver concerns the intentional relinquishment of a known right.
It can be express.
A party may expressly state that a contractual requirement will not be enforced.
But waiver may also be established through conduct inconsistent with an intention to insist upon the right.
The focus is therefore principally upon the person possessing the right:
Did that person know of the right and intentionally relinquish it, expressly or through conduct?
Waiver and Estoppel Are Not the Same
The doctrines frequently appear together in pleadings, but they are conceptually different.
Waiver focuses primarily upon the conduct and intention of the person possessing the right.
Equitable estoppel focuses upon conduct that causes another person reasonably to rely and change position to that person's detriment.
The same facts sometimes support both theories.
That does not make their elements identical.
Contractual Waiver
Waiver frequently arises in contract disputes.
A contract may require:
• written notice;
• performance by a particular date;
• written approval of modifications;
• submission of specified documents;
• satisfaction of a condition precedent; or
• invocation of a remedy following default.
Suppose the party entitled to demand strict compliance repeatedly accepts nonconforming performance, instructs the other party to follow a different procedure, or expressly states that strict compliance is unnecessary.
A waiver issue may arise.
The analysis can become more complicated when the agreement contains a "no waiver" provision. Such language is important, but it should not automatically end the factual inquiry into the parties' subsequent conduct.
Judicial Estoppel — You Cannot Successfully Tell Two Courts Two Different Stories
Judicial estoppel addresses a different problem.
Its principal purpose is not to protect another litigant's reliance. It is to protect the integrity of the judicial process.
In appropriate circumstances, the doctrine prevents a litigant from taking one position in a judicial proceeding, obtaining an advantage or judicial acceptance based upon that position, and later adopting a materially inconsistent position because the opposite position has become more advantageous.
The basic proposition is easily understood:
A litigant should not be permitted to tell one court that the facts are X, benefit from that position, and later tell another court that the same facts are not X when the opposite position becomes profitable.
Judicial Estoppel Is Not Triggered by Every Inconsistency
People make mistakes. Evidence develops. Memories change. Legal theories evolve. Pleadings are amended.
Judicial estoppel therefore is not a rule that every inconsistent statement automatically destroys a claim.
Courts generally examine circumstances including:
• whether the later position is clearly inconsistent with the earlier position;
• whether the earlier position was accepted by the court;
• whether the party obtained an advantage from the earlier position;
• whether acceptance of the later position would create an unfair advantage or inconsistent judicial results; and
• whether the inconsistency resulted from mistake, inadvertence, or other circumstances inconsistent with an effort to manipulate the judicial process.
The doctrine is intended to prevent manipulation of courts, not punish every error.
The Bankruptcy Trap
Bankruptcy provides one of the most important practical examples of judicial estoppel.
A bankruptcy debtor is required to disclose assets.
Potential legal claims can constitute assets even though:
• no lawsuit has yet been filed;
• liability is disputed;
• the amount of damages is uncertain;
• no settlement offer has been made; or
• the debtor does not personally think the claim is worth much.
Suppose a debtor has a known personal-injury, employment, malpractice, discrimination, or other potential claim but files bankruptcy schedules that fail to disclose it.
The bankruptcy court and trustee administer the case based upon the information supplied.
The debtor later pursues the undisclosed claim and seeks a substantial recovery.
The defendant may discover the bankruptcy and argue:
You told the bankruptcy court, under oath, that this asset did not exist. You cannot now tell this court that you possess a valuable claim and personally recover from it.
That is the setting in which judicial estoppel can become devastating.
A Lawsuit Does Not Have to Be Filed Before Disclosure Becomes Important
This point deserves emphasis.
A client may say:
"I didn't list the lawsuit because I hadn't filed one yet."
That may miss the issue entirely.
The relevant asset may be the claim, not merely the lawsuit eventually filed to enforce it.
A potential cause of action may exist before a complaint is drafted, before counsel is retained, and before the claimant knows its ultimate value.
That makes communication between bankruptcy counsel and litigation counsel essential.
Ask Every Personal-Injury Client About Bankruptcy
A lawyer handling a personal-injury or other contingent claim should ask early whether the client:
• has filed bankruptcy;
• is presently in bankruptcy;
• is considering bankruptcy;
• received a bankruptcy discharge while the claim existed;
• disclosed the claim in the schedules; and
• informed the bankruptcy attorney and trustee about the claim.
Do not assume that the client understands why this matters.
Many clients regard an unliquidated lawsuit as something different from "property" or an "asset."
The bankruptcy system may not.
Ask Every Bankruptcy Client About Potential Claims
The inquiry must also run in the opposite direction.
Bankruptcy counsel should ask whether the debtor:
• has been injured in an accident;
• believes a doctor or hospital caused an injury;
• has an employment dispute;
• has experienced discrimination or retaliation;
• has a workers' compensation claim;
• has a claim against an insurer;
• has been financially harmed by another professional;
• has threatened litigation;
• has consulted another lawyer about a potential claim; or
• knows of circumstances that might produce a right to compensation.
Simply asking, "Are you currently suing anyone?" may be inadequate.
The client may truthfully answer "no" while possessing a significant undisclosed asset.
Reopening the Bankruptcy May Matter
Discovery of an omitted claim does not mean counsel should simply abandon the underlying lawsuit.
Depending upon the circumstances, it may be necessary or appropriate to notify bankruptcy counsel, amend schedules, reopen a closed bankruptcy case, notify the trustee, or take other corrective action.
Those steps may affect judicial-estoppel arguments, ownership of the claim, exemptions, administration of proceeds, and the identity of the proper party entitled to prosecute the action.
The consequences depend upon the bankruptcy chapter, timing, nature of the claim, and procedural history.
The problem should be addressed immediately rather than concealed.
A second nondisclosure rarely improves the first one.
The Claim May Belong to the Bankruptcy Estate
Judicial estoppel is not the only problem created by nondisclosure.
There is a separate question of ownership and standing.
Depending upon the bankruptcy circumstances, a prepetition cause of action may become property of the bankruptcy estate. If so, the trustee rather than the debtor may possess authority to pursue or control the claim unless it has been properly exempted or abandoned.
Thus, discovering an undisclosed bankruptcy can produce several distinct questions:
1. Is the plaintiff judicially estopped from taking the present position?
2. Who actually owns the cause of action?
3. Who has authority to prosecute it?
4. Must the bankruptcy case be reopened?
5. Do creditors have an interest in the recovery?
6. Has the claim been exempted or abandoned?
7. Can the omission be corrected?
Those questions should not be collapsed into the single label "judicial estoppel."
Judicial Estoppel Outside Bankruptcy
Bankruptcy is merely the most obvious example.
Judicial estoppel can arise whenever a litigant attempts to obtain advantages from materially inconsistent positions in different judicial proceedings—or, depending upon the circumstances, at different stages of litigation.
Potential settings include:
• family-law proceedings;
• probate and estate litigation;
• workers' compensation proceedings;
• administrative proceedings;
• business disputes;
• ownership disputes;
• insurance litigation; and
• prior lawsuits involving inconsistent factual or legal positions.
Prior pleadings, sworn statements, deposition testimony, affidavits, judicial admissions, settlement submissions, and court findings therefore deserve careful review.
Judicial Estoppel Versus Equitable Estoppel
The terminology invites confusion.
They are different doctrines.
Equitable Estoppel
The concern is primarily the relationship between the parties.
One party acts or speaks in a way that causes another party reasonably to rely and change position to that person's detriment.
Judicial Estoppel
The concern is primarily the integrity of the judicial process.
A litigant adopts materially inconsistent positions before courts in circumstances in which permitting the inconsistency would undermine the administration of justice.
Detrimental reliance by the opposing party is not the defining feature of judicial estoppel.
Judicial Estoppel Versus Collateral Estoppel
The names sound similar, but the doctrines perform entirely different functions.
Judicial estoppel concerns inconsistent positions taken by a litigant.
Collateral estoppel, more commonly described as issue preclusion, concerns an issue that was actually litigated and determined in a prior proceeding and that a party seeks to litigate again.
A simple distinction is:
Judicial estoppel: You cannot manipulate courts by successfully taking inconsistent positions.
Collateral estoppel/issue preclusion: You do not get to relitigate an issue that has already been decided against you when the requirements for issue preclusion are satisfied.
Collateral estoppel is therefore more properly addressed with res judicata and preclusion doctrines than with equitable defenses.
Unclean Hands — Equity Is Not a Refuge for Related Misconduct
The doctrine of unclean hands reflects the principle that a person seeking equitable relief should not obtain the assistance of a court of equity when that person's own improper conduct is directly connected to the matter in controversy.
The doctrine is sometimes overstated.
A litigant does not lose access to equitable relief merely because the litigant behaved badly somewhere else.
The misconduct must bear a sufficient relationship to the transaction or controversy before the court.
Equity is not a general character tribunal.
The Misconduct Must Matter
Suppose a plaintiff seeks an injunction enforcing a property restriction.
The defendant discovers that the plaintiff cheated on taxes ten years earlier.
Whatever consequences that conduct may have elsewhere, it has no apparent relationship to enforcement of the property restriction.
Now suppose the plaintiff obtained the very restriction through fraud and asks a court of equity to enforce it.
The connection is direct.
The unclean-hands argument becomes substantially stronger.
Unclean Hands Is Generally a Defense, Not a Cause of Action
Unclean hands ordinarily operates defensively.
It generally does not create an independent damages action merely because the opposing party behaved improperly.
Its function is to prevent misuse of equitable relief.
Acquiescence — You Knew and Allowed It to Continue
Acquiescence arises when a person, with knowledge of conduct affecting that person's rights, expressly or impliedly accepts or permits the conduct to continue.
It frequently appears in property, boundary, easement, restrictive-covenant, business, and similar disputes.
Acquiescence overlaps with waiver, estoppel, and laches but emphasizes knowing acceptance or apparent assent.
Acquiescence Versus Laches
The distinction can be summarized:
Laches emphasizes unreasonable delay and resulting prejudice.
Acquiescence emphasizes knowing acceptance or apparent assent.
The same conduct may support both theories.
A property owner who watches a neighbor construct and use an improvement for many years without objection may face arguments based upon delay, prejudice, and apparent acceptance.
Each doctrine should nevertheless be analyzed independently.
Ratification
Ratification is another related principle.
A person who learns that an act was performed without proper authority may subsequently adopt or affirm it, expressly or through conduct.
Acceptance of benefits with knowledge of material facts can be important evidence of ratification.
Ratification frequently arises in agency, contract, corporate, partnership, settlement, and fiduciary disputes.
Knowledge matters. A person cannot meaningfully ratify conduct without sufficient knowledge of what is being adopted.
Equitable Defenses Against Governmental Entities
Counsel should exercise particular caution before assuming that estoppel and related doctrines operate against governmental entities exactly as they operate between private parties.
Public officials possess only authority conferred upon them by law. An employee's representation ordinarily cannot manufacture governmental power that the law does not provide.
Maryland courts therefore approach estoppel against governmental entities cautiously.
A lawyer should not assume that an official's informal assurance can waive a statutory requirement, enlarge governmental authority, or bind a public entity beyond the official's lawful power.
This can become particularly important with notice requirements, permits, land use, governmental contracts, benefits, and tort claims against governmental entities.
Equity Cannot Simply Rewrite a Statute
There is a broader limitation.
Equity is powerful, but it does not give courts a general license to disregard legislation.
Where the General Assembly has imposed a substantive statutory requirement, a litigant should not assume that equitable terminology can erase it.
The distinction between a procedural deadline and a substantive statutory condition may be critical.
Plead the Doctrine, Then Prove the Facts
Equitable defenses should not be treated as boilerplate at the end of an answer.
It is easy to write:
"Plaintiff's claims are barred by waiver, estoppel, judicial estoppel, laches, acquiescence, and unclean hands."
That sentence proves nothing.
The useful questions are factual:
Who said what?
Who knew what?
When?
What position was previously taken?
Was that position accepted by a court?
What benefit was obtained?
What did another person do in reliance?
How long was the delay?
What changed during the delay?
What right was allegedly relinquished?
What misconduct relates directly to the equitable relief sought?
The doctrines become meaningful only when attached to evidence.
Electronic Records Often Decide the Issue
Modern equitable-defense cases frequently turn on communications created long before anyone anticipated litigation.
Emails, text messages, electronic calendars, claim logs, internal notes, bankruptcy schedules, electronic court filings, customer-service records, and metadata may establish:
• when a party learned of a problem;
• whether an objection was made;
• whether additional time was promised;
• whether strict compliance was demanded;
• whether nonconforming performance was accepted;
• whether settlement was represented as imminent;
• what a litigant represented in another proceeding; or
• whether a party remained silent while another changed position.
The electronic record may reveal a completely different case from the one reconstructed years later from memory.
Do Not Confuse Fairness With an Equitable Defense
The recurring mistake is treating equity as an invitation to argue generalized fairness.
It is not enough to say:
"It would be unfair to let them do this."
Ask instead:
What exactly did they do? Which recognized doctrine applies? What are its requirements? What evidence proves them?
Equity is most effective when it is precise.
Practical Lesson
These doctrines all restrain inconsistent or inequitable conduct, but they attack different problems.
Laches: You waited unreasonably long, and the delay caused prejudice.
Equitable estoppel: Your conduct caused someone else reasonably to rely and change position.
Waiver: You knowingly relinquished the right.
Judicial estoppel: You successfully took one position before a court and cannot manipulate the judicial process by taking an inconsistent one when circumstances change.
Unclean hands: Your own related misconduct makes equitable relief inappropriate.
Acquiescence: You knew what was happening and, by words or conduct, allowed it to continue.
Using the correct doctrine matters.
The facts may feel unfair under several of them. The lawyer's task is to identify precisely why the law says the unfairness matters.
Related Maryland Cases and Authorities
• Frederick Road Limited Partnership v. Brown & Sturm, 360 Md. 76, 756 A.2d 963 (2000) — discusses equitable estoppel and circumstances in which conduct inducing delay may affect reliance upon limitations.
• Lipitz v. Hurwitz, 435 Md. 273, 77 A.3d 1088 (2013) — discusses laches, delay, prejudice, and the relationship between equitable claims and analogous limitations periods.
• Ademiluyi v. Egbuonu, 466 Md. 80, 215 A.3d 19 (2019) — addresses laches and the importance of prejudice in the equitable analysis.
• Hovnanian Land Investment Group, LLC v. Annapolis Towne Centre at Parole, LLC, 421 Md. 94, 25 A.3d 967 (2011) — discusses Maryland waiver principles.
• Food Fair Stores, Inc. v. Blumberg, 234 Md. 521, 200 A.2d 166 (1964) — frequently cited Maryland authority concerning waiver and conduct inconsistent with an intention to insist upon a contractual right.
• Gordon v. Posner, 142 Md. App. 399, 790 A.2d 675 (2002) — discusses judicial estoppel and inconsistent positions taken in judicial proceedings.
• Dashiell v. Meeks, 396 Md. 149, 913 A.2d 10 (2006) — discusses judicial estoppel and the protection of judicial integrity against improper inconsistent positions.
• Turner v. Turner, 147 Md. App. 350, 809 A.2d 18 (2002) — discusses the clean-hands doctrine and the relationship required between the misconduct and the controversy.
• Heartwood 88, Inc. v. Montgomery County, 156 Md. App. 333, 846 A.2d 1096 (2004) — discusses limitations upon application of equitable estoppel against governmental entities.
• 11 U.S.C. § 541 — defines property of the bankruptcy estate and is critical when determining whether a cause of action belongs to the estate.
• 11 U.S.C. § 521 — addresses a debtor's duties, including filing schedules of assets and liabilities.