Massachusetts common-law two-stage review under Rosenberg and DeMatteo, exact property and child statutes, probate treatment, and historical applicability boundaries.
Pennsylvania's codified premarital-agreement test in 23 Pa.C.S. § 3106, the agreement remedies and modification rules in § 3105, the 2004 enactment history, and qualified controlling appellate interpretations.
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formalities
Massachusetts
Mass. Gen. Laws ch. 209, § 25
Before marriage, parties may make a written contract concerning property or rights of action held when marriage occurs; its limitations take effect upon marriage as if in a deed.
Section 3106 defines a premarital agreement and requires an express waiver of additional financial disclosure to be in writing, but it does not state a comprehensive writing-and-signature formality for the agreement itself.
Rosenberg v. Lipnick, 377 Mass. 666, 389 N.E.2d 385 (1979)
The waiving party must be informed of the other's worth or have adequate knowledge, and disclosure must permit a reasonable decision whether to proceed.
The disclosure branch requires the challenger to prove all three conditions before execution: no fair and reasonable disclosure, no voluntary express written waiver of additional disclosure, and no adequate knowledge of the other party's property or financial obligations.
Rudnick found enforcement unconscionable where breached title promises and the agreement left an elderly spouse without marital property, alimony, or sufficient resources.
Austin enforced a negotiated waiver after finding execution validity and enforcement-time conscionability because meaningful assets and resources remained.
Unless the agreement specifically provides otherwise, provisions addressing existing property rights, alimony, alimony pendente lite, counsel fees, or expenses are not subject to court modification.
Musko's majority enforced reciprocal language barring money, property, alimony, or support as unambiguously reaching alimony pendente lite even though the clause did not use that exact statutory term.
Before marriage, parties may make a written contract concerning property or rights of action held when marriage occurs; its limitations take effect upon marriage as if in a deed.
Section 25 is not a comprehensive divorce-prenup validity code.
propertyofficial guidance
Mass. Gen. Laws ch. 209, § 26
Massachusetts property schedule and recording rule
A clearly descriptive property schedule must be annexed, and the contract and schedule recorded before marriage or within ninety days afterward in the specified registry and where affected land lies.
Nonrecording has the statute's stated third-party consequences; section 26 is not a universal divorce-enforcement rule.
permitted subjectscase reporter
Osborne v. Osborne, 384 Mass. 591, 428 N.E.2d 810 (1981)
Massachusetts recognition of divorce-related premarital settlements
Massachusetts recognizes premarital settlement of divorce-related property and spousal-support consequences, subject to validity, conscionability, and nonwaivable limits.
DeMatteo discusses Osborne and supplies the modern framework; not every personal term is enforceable.
voluntarinesscase reporter
DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002)
Massachusetts controlling two-stage framework
DeMatteo requires a first look at execution-time fairness and reasonableness and a second look at enforcement-time conscionability.
Neither stage can be replaced by a generic fairness label.
financial disclosurecase reporter
Rosenberg v. Lipnick, 377 Mass. 666, 389 N.E.2d 385 (1979)
Massachusetts disclosure and knowledge requirement
The waiving party must be informed of the other's worth or have adequate knowledge, and disclosure must permit a reasonable decision whether to proceed.
Exact valuations are not invariably required, but material omissions or misleading information remain consequential.
limitationscase reporter
Rosenberg v. Lipnick, 377 Mass. 666, 389 N.E.2d 385 (1979)
Prospective spouses stand in a confidential relationship and must deal fairly and understandingly when making a premarital agreement.
The relationship informs agreement validity; it does not decide every later transaction.
voluntarinesscase reporter
DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002)
Massachusetts execution-time fairness review
The first look considers knowledge, disclosure, waiver language, counsel, review opportunity, understanding, and absence of overreaching.
One-sidedness alone is insufficient, but stripping substantially all marital interests presents a serious issue.
independent counselcase reporter
DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002)
Massachusetts independent-counsel factor
Separate counsel and meaningful review opportunity strongly inform knowing and voluntary execution but are not categorical execution formalities.
Counsel participation does not automatically cure deficient disclosure, misunderstanding, or pressure.
timingcase reporter
DeMatteo v. DeMatteo, 436 Mass. 18 (2002); Austin v. Austin, 445 Mass. 601 (2005)
Massachusetts review-time inquiry
Massachusetts has no fixed waiting period; courts assess delivery, drafts, negotiation, counsel work, wedding pressure, and understanding on the full chronology.
Austin's two-day and DeMatteo's roughly two-week intervals were fact-specific, not safe harbors.
limitationscase reporter
Rosenberg v. Lipnick, 377 Mass. 666 (1979); DeMatteo v. DeMatteo, 436 Mass. 18 (2002)
Massachusetts express-waiver requirement
The agreement must set forth the rights relinquished so the waiver can be evaluated as knowing, fair, and understanding.
A broad recital cannot substitute for construing the actual waiver and asserted right.
effective datecase reporter
DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002)
Changed circumstances may make enforcement unconscionable if they leave a spouse without sufficient property, maintenance, or employment capacity for self-support.
The second look is a conscionability safeguard, not ordinary discretionary division under section 34.
limitationscase reporter
DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002)
Massachusetts public-charge and child-interest limits
Potential public-charge consequences and conflict with a child's best interests exemplify limits private premarital terms cannot conclusively control.
These examples require current facts and law; they do not automatically invalidate the entire agreement.
Rudnick found enforcement unconscionable where breached title promises and the agreement left an elderly spouse without marital property, alimony, or sufficient resources.
Rudnick is fact-specific and creates no categorical age or duration rule.
spousal supportcase reporter
Austin v. Austin, 445 Mass. 601, 839 N.E.2d 837 (2005)
Massachusetts support-waiver application
Austin enforced a negotiated waiver after finding execution validity and enforcement-time conscionability because meaningful assets and resources remained.
Austin supplies no universal formula for an enforceable support waiver.
propertycase reporter
DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002)
Massachusetts contract interpretation of premarital terms
An enforceable agreement remains a contract whose language, definitions, schedules, triggers, and integrated obligations must be construed.
Validity and interpretation are separate; a valid agreement may not reach the asserted asset or remedy.
amendment revocationcase reporter
DeMatteo v. DeMatteo, 436 Mass. 18 (2002); Mass. Gen. Laws ch. 209, §§ 25–26
Massachusetts has no UPAA-style general amendment section; a claimed change must satisfy the agreement, contract doctrine, and transaction-specific writing, deed, probate, or recording rules.
Do not infer a universal amendment method from section 25 or marital conduct.
effective dateofficial guidance
Mass. Gen. Laws ch. 209, § 25
Massachusetts statutory effect at marriage
For a qualifying written property contract, limitations upon property rights take effect when marriage occurs as if contained in a deed.
This is specific to section 25, not a uniform-act applicability schedule.
child supportofficial guidance
Mass. Gen. Laws ch. 208, § 28
Massachusetts custody and best-interest boundary
Courts retain authority over custody, care, maintenance, and education of minor children under child-focused standards and continuing modification power.
Private terms may supply context but cannot displace the court's statutory responsibility.
child supportofficial guidance
Mass. Gen. Laws ch. 208, § 28
Massachusetts child-support guideline boundary
Child-support orders follow current law and the guideline presumption, subject to lawful deviation findings rather than a prospective private waiver.
An agreement cannot freeze a future child's support entitlement.
A postjudgment child-support agreement cannot bar modification without statutory findings, including guideline consistency and the child's best interests.
Section 13 concerns postjudgment agreements, not general prenup execution.
limitationscase reporter
DeMatteo v. DeMatteo, 436 Mass. 18 (2002); Mass. Gen. Laws ch. 208, §§ 17, 38
A premarital agreement cannot eliminate statutory authority to award funds or expenses needed to litigate validity and the domestic-relations proceeding.
The amount and basis remain discretionary; fees are not guaranteed in every case.
propertycase reporter
Matter of the Estate of Stacy, 96 Mass. App. Ct. 447, 136 N.E.3d 486 (2019)
Stacy enforced plain premarital language waiving claims to identified separate property at death and excluded it from the surviving spouse's intestate-share calculation.
Probate construction is distinct from divorce enforcement and requires current-law review.
effective datecase reporter
Rosenberg v. Lipnick, 377 Mass. 666, 389 N.E.2d 385 (1979)
Massachusetts Rosenberg prospective-rule boundary
Rosenberg made its revised rules prospective for instruments executed after publication, requiring historical-law analysis for earlier agreements.
Counsel must retrieve the actual historical authorities for older instruments.
effective dateofficial guidance
Mass. Gen. Laws ch. 209, §§ 25–26; DeMatteo v. DeMatteo, 436 Mass. 18 (2002)
Massachusetts statutory and common-law applicability map
Massachusetts has no enacted UPAA or UPMAA schedule; execution date, marriage date, Rosenberg's line, amendments, and remedy determine governing law.
Reserved code sections and proposed bills are not current premarital-agreement law.
formalitiesstatute
23 Pa.C.S. § 3106(a)(2)(ii), (b)
Pennsylvania codified-formality boundary
Section 3106 defines a premarital agreement and requires an express waiver of additional financial disclosure to be in writing, but it does not state a comprehensive writing-and-signature formality for the agreement itself.
Counsel must apply Pennsylvania contract law and current cases to formation; this record does not infer a missing statutory formality.
voluntarinessstatute
23 Pa.C.S. § 3106(a)(1)
Pennsylvania voluntary-execution rule
The party seeking to set aside a premarital agreement bears the burden to prove involuntary execution by clear and convincing evidence.
Voluntariness remains fact-specific; the statute does not create a fixed waiting period or independent-counsel requirement.
financial disclosurestatute
23 Pa.C.S. § 3106(a)(2)
Pennsylvania disclosure, waiver, and knowledge rule
The disclosure branch requires the challenger to prove all three conditions before execution: no fair and reasonable disclosure, no voluntary express written waiver of additional disclosure, and no adequate knowledge of the other party's property or financial obligations.
The three subconditions are conjunctive, while involuntariness in subsection (a)(1) is an alternative statutory ground.
permitted subjectsstatute
23 Pa.C.S. § 3105(a), (c)
Pennsylvania agreement remedies and covered economic provisions
Section 3105 supplies court enforcement remedies for agreements concerning matters within the Divorce Code and specifically addresses existing property rights, alimony, alimony pendente lite, counsel fees, and expenses.
Section 3105 is not a comprehensive permitted-subjects list; counsel must separately test contract validity and public policy.
child supportstatute
23 Pa.C.S. § 3105(b)
Pennsylvania child-related modification rule
A provision concerning child support, visitation, or custody remains subject to court modification upon changed circumstances.
The statute prevents the agreement from finally displacing the court's continuing child-related authority.
spousal supportstatute
23 Pa.C.S. § 3105(c)
Pennsylvania nonmodification default for specified economic terms
Unless the agreement specifically provides otherwise, provisions addressing existing property rights, alimony, alimony pendente lite, counsel fees, or expenses are not subject to court modification.
Clause construction remains decisive, including whether the provision actually reaches the relief requested.
Act 175 added section 3106 on November 29, 2004, effective in 60 days, and made it applicable to premarital agreements executed on or after that effective date.
January 28, 2005 is the calendar date 60 days after enactment; counsel should verify transition law for earlier agreements.
independent counselcase reporter
Simeone v. Simeone, 525 Pa. 392, 581 A.2d 162 (1990)
Pennsylvania Supreme Court contract and counsel framework
Simeone treats premarital agreements as contracts, rejects a per se independent-counsel requirement, preserves full and fair financial disclosure, and binds parties absent fraud, misrepresentation, or duress.
Simeone predates section 3106; counsel must read it together with the statute and later authority rather than substitute one framework for the other.
timingcase reporter
Simeone v. Simeone, 525 Pa. 392, 581 A.2d 162 (1990)
Pennsylvania Supreme Court timing and duress record
Simeone affirmed rejection of duress where the final agreement arrived on the wedding eve but the credited record showed months of prior discussion and ample opportunity to seek counsel.
The holding is record-specific and does not create a safe waiting period; section 3106 now supplies the statutory burden for covered agreements.
Pennsylvania Supreme Court fraud and reliance analysis
Porreco concluded that the claimed ring-value misrepresentation lacked justifiable reliance and remanded the distinct confidential-relationship issue.
The cited writing is an opinion announcing the judgment and addressed a narrow fraud issue; counsel must assess its precedential scope and later treatment.
spousal supportcase reporter
Musko v. Musko, 548 Pa. 378, 697 A.2d 255 (1997)
Pennsylvania Supreme Court support-clause construction
Musko's majority enforced reciprocal language barring money, property, alimony, or support as unambiguously reaching alimony pendente lite even though the clause did not use that exact statutory term.
Musko is a clause-specific construction decision; it does not make every general support waiver sufficient.