Delaware Prenuptial Agreement

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Coulbourn v. Lambert, No. CN96-07754, 1996 WL 860586 (Del. Fam. Ct. Dec. 19, 1996)

Family Court set aside a prenup signed two days before the wedding by a homemaker wife with limited education and no independent counsel, finding she did not voluntarily enter the agreement where the wealthy businessman husband initiated and presented the agreement and her legal rights were never fully explained.

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Rockwell v. Rockwell, 681 A.2d 1017 (Del. 1996)

‍Delaware Supreme Court affirmed Family Court's modification of alimony provisions in a separation agreement incorporated into the divorce decree based on the wife's showing of a "real and substantial change of circumstances" under 13 Del. C. § 1519(a)(4), confirming that incorporated agreements are subject to statutory modification absent contrary contractual language.

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Silverman v. Silverman, 206 A.3d 825 (Del. 2019)

‍Delaware Supreme Court reversed Family Court and enforced a 1997 prenup against the wife in a divorce after an 18-year marriage, holding that unconscionability alone cannot invalidate a premarital agreement under 13 Del. C. § 326 — the challenger must also prove inadequate disclosure, and the husband's omissions (a Ford Explorer, a $3,000 life insurance policy, and a misstated 50% vs. 100% ownership in a $200,000 parcel) were de minimis against his disclosed ~$4 million net worth.

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Sherman v. Ellis (Superior Ct.), 2020 WL 30055 (Del. Super. Ct. Jan. 2, 2020)

‍Superior Court held the same prenup at issue in Silverman (real names: Sherman/Willoughby) enforceable against the wife — who waived alimony and any share of marital wealth and signed against her attorney's written advice — where husband's assets exceeded $12 million and annual income exceeded $1 million at the time of divorce.

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Sherman v. Ellis, 246 A.3d 1126 (Del. 2021)

Delaware's Supreme Court let a husband's malpractice suit against his own prenup lawyer move forward, after the attorney left out a standard disclosure-waiver clause that Delaware law allows — a gap his ex-wife later used to attack the agreement at divorce. Perfect Prenup includes this standard disclosure waiver.

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In re Estate of Lawrence M. Sullivan, Sr., C.A. No. 2020-0318-SEM (Del. Ch. Oct. 31, 2022)

‍Court of Chancery Master held a surviving wife's challenge to a 1988 prenup — under which she waived dower, elective share, intestacy, and statutory allowance rights against her husband's estate — was barred by laches after a 30+ year delay, where she had independent counsel who advised against signing and she signed anyway.

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L.W. v. J.W., No. CN13-01397, 2014 WL 4203848 (Del. Fam. Ct. 2014)

Family Court enforced a prenup signed by parties who both lacked legal counsel, finding the wife voluntarily signed because she repeatedly told the husband she didn't care about his assets and chose not to consult an attorney for that reason.

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T.A. v. C.A., No. 20-16002, 2022 WL 2256331 (Del. Fam. Ct. Feb. 10, 2022)

Family Court enforced a prenup signed 10 days before the wedding by a couple with a history of breaking up and reconciling, holding that tight pre-wedding timing combined with one party's lack of counsel did not establish involuntariness where the totality of circumstances showed the wife understood and accepted the agreement.

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1. How much does a prenup cost in Delaware?

A Delaware attorney typically charges a flat fee around $950 to draft a prenuptial agreement, or about $700 to review one you bring in — roughly $875 all-in for a standard agreement. Complexity drives the price up: businesses, multiple properties, trusts, or heavy back-and-forth negotiation can push fees to $3,000–$10,000 or more. Online platforms offer flat-fee templates near $599 per couple, often with optional attorney review add-ons. The biggest cost driver isn't the document — it's how much the two of you disagree, so aligning on terms first saves the most money.

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2. Can a prenup be overturned in Delaware?

Yes, but the bar is high and the burden is on the person challenging it. Under 13 Del. C. § 326, a Delaware prenup is only unenforceable if the challenger proves either (1) they didn't sign voluntarily — coercion, duress, or last-minute pressure — or (2) the agreement was unconscionable when signed AND they didn't get fair financial disclosure, didn't waive disclosure in writing, and couldn't reasonably have known the other party's finances. Meet the formalities and disclose properly, and a Delaware prenup is very hard to break.

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3. Will a Delaware court re-examine my prenup for fairness at divorce?

No — and this is what makes Delaware one of the strongest prenup states. Delaware uses "single review": a court tests the agreement for unconscionability only at the time you signed it, not again years later at divorce. There is no "second look." The Delaware Supreme Court confirmed this in Silverman v. Silverman (2019), enforcing a prenup even though one spouse left the marriage with millions and the other with almost nothing. A lopsided outcome at divorce, by itself, will not void a valid Delaware prenup.

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4. Is a prenuptial agreement legally enforceable in Delaware?

Yes. Delaware enforces prenups under the Uniform Premarital Agreement Act, 13 Del. C. §§ 321–328. To hold up, the agreement must be in writing, signed by both parties, entered voluntarily, and backed by fair and reasonable financial disclosure (or a written waiver of further disclosure). Because Delaware reviews fairness only at signing — not at divorce — a properly executed Delaware prenup offers unusually strong enforcement certainty compared with most states.

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5. Can you waive alimony in a Delaware prenup?

Yes, and Delaware enforces alimony waivers more strictly than most states. Under 13 Del. C. § 1512(f), a spouse who waives alimony in writing "shall have no remedy" under the alimony statute. Unlike many states, Delaware has no public-assistance exception — a court will not override your waiver just because one spouse ends up with little or qualifies for public benefits. A clear, voluntary, written alimony waiver is binding even where there's a large wealth gap.

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6. What makes a prenup invalid in Delaware?

The two killers are involuntary signing and the disclosure failure combo. A prenup can be thrown out if a spouse signed under coercion or duress, or if the agreement was unconscionable when signed AND that spouse never received fair financial disclosure, never waived it in writing, and had no realistic way to know the other's finances. Common practical traps: hiding assets, signing under last-minute pressure, or leaving out the written disclosure-waiver clause Delaware law specifically allows.

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7. Why does a Delaware prenup need a financial disclosure waiver clause?

Because it's your strongest shield against a later challenge. Delaware law lets each party disclose their finances (usually via attached asset schedules) and then sign a written waiver giving up the right to demand further disclosure. In Silverman, the husband actually had disclosure gaps — a missing vehicle, a small life-insurance policy, a misstated property interest — but because the waiver language was present, the court treated it as a near-conclusive defense and enforced the agreement. A real Delaware case turned on a lawyer leaving that clause out, which opened the door to attack. Disclose, attach schedules, then waive further disclosure.

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8. Does a prenup need to be notarized in Delaware?

No. Delaware only requires that a prenup be in writing and signed by both parties under 13 Del. C. § 322 — notarization isn't legally required. But notarizing is strongly recommended: it makes signature-based challenges like forgery or "I was pressured at signing" nearly impossible to mount. The cost is minimal and the enforceability benefit is real, so most well-drafted Delaware prenups are notarized anyway.

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9. Do I need a lawyer to get a prenup in Delaware?

No, but it sharply reduces your risk. Delaware doesn't require either party to have independent counsel — a Family Court has enforced a prenup where neither spouse had a lawyer. But independent counsel is one of the most powerful enforcement boosters available: in a Delaware case, a signed written acknowledgment that a party went against their own attorney's advice was treated as nearly decisive proof the signing was voluntary. At minimum, each party having separate counsel makes a later "I was pressured" claim very hard to win.

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10. How long before the wedding should I sign a prenup in Delaware?

Delaware sets no minimum waiting period, but timing is one of the most common grounds for a challenge. A Delaware Family Court set aside a prenup signed two days before the wedding (Coulbourn v. Lambert), yet upheld one signed ten days out (T.A. v. C.A.), so it's about the totality of circumstances, not a magic number. Best practice: engage an attorney 4–6 months out, give your fiancé 1–2 weeks with the final draft, and sign at least 60+ days before the ceremony. Signing before you even propose is the safest option.

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11. Does a Delaware prenup cover debt?

Yes. Under 13 Del. C. § 323(a), you can define each spouse's rights and obligations in any property, which includes debts and liabilities. A prenup can keep premarital debt (student loans, credit cards, business loans) separate, assign responsibility for debts taken on during the marriage, and prevent one spouse's creditors from reaching the other's separate property. Without a prenup, debt allocation is left to a Family Court's equitable-distribution discretion.

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12. Can a prenup protect a business in Delaware?

Yes — this is one of the most common reasons Delaware couples sign one. A prenup can keep a business you own before marriage as separate property, define whether any increase in its value during the marriage stays separate, and protect a co-founder or family business from being dragged into a divorce. Without a prenup, growth in a business's value during the marriage can be treated as marital and divided under equitable distribution. Business owners should disclose the business on their asset schedule and address appreciation explicitly.

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13. Is an out-of-state prenup valid in Delaware?

Generally yes. Delaware lets parties choose which state's law governs their agreement under 13 Del. C. § 323(a)(7), and Delaware courts will typically honor a prenup that was valid where it was signed. That said, if you've moved to Delaware or plan to divorce here, it's worth having a Delaware attorney review an out-of-state agreement — local enforcement standards, especially Delaware's signing-time-only fairness review, can differ from where you originally signed.

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14. Can a prenup waive inheritance rights in Delaware?

Yes. A Delaware prenup can waive a spouse's elective share, intestacy rights, and statutory allowances against the other's estate — useful for protecting children from a prior marriage or keeping family assets in the bloodline. Delaware courts enforce these waivers; in one estate case, a surviving spouse's challenge to a decades-old prenup waiving her elective share was barred entirely after a long delay, where she'd had independent counsel and signed anyway. Coordinate the prenup with your will and estate plan so the documents don't conflict.

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15. Can I change or get a prenup after marriage in Delaware (postnup)?

Yes. Once married, the agreement is technically a postnuptial agreement. Delaware allows you to amend or revoke a premarital agreement after marriage by a signed written agreement under 13 Del. C. § 325, and Delaware courts also enforce freestanding postnups under contract principles. Postnups must meet the same standards: in writing, signed voluntarily, with fair disclosure or a written waiver. Common triggers are an inheritance, starting a business, or reconciling after a rough patch.