Many couples choose to sign a prenuptial agreement before getting married to clarify how property, debts, and financial matters will be handled if the marriage ends in divorce. While these agreements can provide certainty and reduce future disputes, they are not automatically enforceable in every situation.

A recent Illinois appellate decision, In re Marriage of Escamilla, issued in May 2026, highlights the importance of carefully preparing and reviewing prenuptial agreements under Illinois law.

Understanding how Illinois courts evaluate these agreements can help couples make informed decisions before and during marriage.

What Is a Prenuptial Agreement?

A prenuptial agreement, often called a prenup, is a legal contract signed by two people before they marry.

A prenup may address issues such as:

• Division of property
• Marital and non-marital assets
• Responsibility for debts
• Business ownership interests
• Inheritance rights
• Spousal maintenance (alimony) under certain circumstances



Many couples use prenuptial agreements to establish financial expectations and reduce uncertainty if the marriage later ends in divorce.

Although some people believe prenups are only for wealthy individuals, they can benefit couples with businesses, retirement accounts, children from previous relationships, significant assets, or anticipated future earnings.

When Can a Prenup Be Challenged?

Not every prenuptial agreement will automatically be enforced by an Illinois court.

A spouse may challenge a prenup for several reasons, depending on the facts of the case.

Some common issues include:

• Lack of voluntary consent
• Failure to fully disclose assets or debts
• Fraud or misrepresentation
• Duress or coercion
• Unconscionable or extremely unfair terms under certain circumstances



Courts generally examine whether both parties entered into the agreement knowingly and voluntarily before deciding whether it should be enforced.

Each case is unique, and the outcome depends on the specific facts and applicable Illinois law.

How Do Illinois Courts Review Prenuptial Agreements?

Illinois courts typically review several factors when determining whether a prenuptial agreement is enforceable.

These may include:

• Whether both parties signed voluntarily
• Whether each party had an opportunity to review the agreement
• Whether financial information was adequately disclosed
• Whether the agreement complies with Illinois law
• The circumstances surrounding the execution of the agreement



The recent In re Marriage of Escamilla decision serves as another reminder that courts carefully evaluate prenuptial agreements rather than automatically enforcing every provision.

Proper drafting and legal review before signing can help reduce future disputes.

Can a Prenup Affect Property Division?

Yes. One of the primary purposes of a prenuptial agreement is to establish how certain property will be treated if the marriage ends.

A prenup may specify:

• Which assets remain separate property
• How marital property will be divided
• Ownership of real estate
• Investment accounts
• Retirement assets
• Business interests
• Future appreciation of certain assets



Without a valid prenuptial agreement, Illinois courts generally divide marital property according to the state's equitable distribution laws.

A properly drafted prenup may provide greater certainty regarding financial expectations during divorce proceedings.

Can a Prenup Affect Spousal Support?

In some situations, yes.

A prenuptial agreement may include provisions regarding spousal maintenance, also known as alimony.

For example, the agreement may address:

• Whether maintenance will be paid
• The amount of support
• The duration of payments
• Circumstances under which maintenance may end



However, Illinois courts may review these provisions to determine whether they comply with state law and whether enforcement would be appropriate under the circumstances.

Not every maintenance provision will automatically be upheld simply because it appears in a prenup.

Why Legal Guidance Matters When Creating a Prenup

A prenuptial agreement is intended to provide clarity and reduce conflict, but only if it is properly prepared.

Working with an experienced Illinois family law attorney before signing a prenup may help ensure that:

• The agreement complies with Illinois law
• Financial disclosures are complete
• The terms accurately reflect the parties' intentions
• Potential future disputes are minimized



Careful planning before marriage can provide greater peace of mind and help protect both parties' financial interests.

If you have questions about prenuptial agreements, divorce, property division, or spousal maintenance in Illinois, the family law team at Weiss Ortiz Attorneys & Mediators can help you understand your legal rights and options.