In Michigan, your prenup can become unenforceable if either of you withheld or misrepresented financial information, one of you signed under pressure or the terms were unconscionable when you signed it. Courts look at both how you made the agreement and what it actually says.
Missing financial disclosure can undermine the agreement
A valid prenup depends on honest disclosure about property, debts and income before signing. If your future spouse hides assets or downplays the value of a business, you may not have enough information to make an informed decision.
Michigan courts often ask whether each person disclosed property, debts and income fairly and reasonably. That same disclosure issue can also affect marital agreement disputes involving postnuptial agreements because incomplete financial information can weaken enforcement of either type of contract.
Can pressure or poor timing make the prenup unenforceable?
Yes. A court may question the agreement if your future spouse presented it so close to the wedding that you had no real chance to review it or get legal advice. Pressure alone does not automatically void a prenup, but it can matter when the facts show unfairness.
Michigan law requires a prenup to appear in a written document with both parties’ signatures. For general background, the State Bar of Michigan’s consumer article on prenups discusses common enforceability issues. An oral promise or unsigned draft is not enforceable as a prenuptial agreement.
What to do if you think your prenup may not hold up
If you are concerned your prenup may not hold up, it helps to understand what courts examine. Michigan courts generally focus on whether the terms were unconscionable when you signed the agreement, though the fairness of enforcement may also matter depending on the circumstances.
Courts also consider when your future spouse presented the agreement, whether the financial disclosures were complete and whether each person had a reasonable chance to consult an attorney before signing. Whether your Michigan prenup holds up often comes down to how you made it, not just what it says. If there are questions about timing, disclosure or fairness, reviewing the agreement before divorce litigation begins can help you spot weaknesses early. A family law attorney can assess whether the agreement is likely to survive a challenge and what options you may have.