Fernandez $1M Prenup vs. $1B Estate: Florida § 61.079 Test

Miami healthcare billionaire Miguel "Mike" Fernandez, 73, filed to divorce Constance, 61, in Miami-Dade County after 25 years and is asking the court to enforce a prenuptial agreement signed on their 2001 wedding day that caps her recovery at roughly $1 million — about 0.1% of his estimated $1 billion fortune. Whether that agreement survives depends almost entirely on Fla. Stat. § 61.079, Florida's Uniform Premarital Agreement Act.

The reporting comes from AOL, republishing People. Constance's attorneys are challenging the agreement's validity, reportedly arguing she lacked adequate independent counsel when she signed it on the day of a "pop-up" wedding. Fernandez's side counters that the contract is valid and enforceable. Florida law — not sympathy for the disparity — will decide.

Why this matters legally

A lopsided prenup is not automatically void in Florida. Under Fla. Stat. § 61.079(7), a premarital agreement is unenforceable only if the challenging spouse proves it was not executed voluntarily, or that it was the product of fraud, duress, coercion, or overreaching, or that it was unconscionable when signed AND the spouse was not given fair disclosure and did not waive it. The $1M-versus-$1B gap alone does not meet that bar.

That framework flows from the Florida Supreme Court's decision in Hahamovitch v. Hahamovitch, 174 So. 3d 983 (Fla. 2015). In Hahamovitch, the Court enforced a prenup with broad waiver language even though the outcome was highly unequal, holding that a general waiver of "all" marital claims covers appreciation and enhancement of separate property. A wedding-day signing raises voluntariness and duress questions, but Florida courts routinely enforce same-day agreements when disclosure and understanding are shown.

The practical takeaway from the statute is blunt: in Florida, procedure beats proportion. A court asks how the agreement was made — disclosure, counsel, timing, pressure — far more than whether the dollar split looks fair. Constance's strongest path is proving a procedural defect at signing, not arguing that 0.1% is simply too little.

How Florida law handles this

Florida enforces prenuptial agreements under Fla. Stat. § 61.079, which adopted a modified Uniform Premarital Agreement Act effective in 2007. Because the Fernandez agreement was signed in 2001, common-law standards from cases like Casto v. Casto, 508 So. 2d 330 (Fla. 1987), also apply alongside the statutory framework — a nuance the court will address early.

Under Fla. Stat. § 61.079(7)(a), the spouse attacking the prenup carries the burden of proof. She must show one of the statutory grounds by evidence, not argument. Duress requires more than stress or a compressed timeline; Florida courts have upheld agreements signed hours before a ceremony. A "pop-up" wedding, standing alone, is not duress.

Independent counsel is a factor, not a strict requirement. Florida does not mandate that each spouse retain a lawyer for a prenup to be valid. However, the absence of independent counsel — combined with same-day signing and limited time to review — becomes powerful circumstantial evidence of overreaching or involuntariness. Courts weigh these facts together.

Financial disclosure is the other pillar. Under the statute, an unconscionable agreement can still be enforced if the challenging spouse received fair and reasonable disclosure of the other's property and finances, or knowingly waived it in writing. Expect the Fernandez litigation to turn heavily on what Constance was told about the estate in 2001 and whether she waived disclosure.

Florida also treats equitable distribution under Fla. Stat. § 61.075 and alimony under Fla. Stat. § 61.08 as default rules that a valid prenup can override. A binding agreement can waive alimony and lock in a fixed payout, which is precisely what a $1M cap attempts to do across a 25-year marriage.

Practical takeaways

1. Preserve the signing record. If you are challenging a prenup in Florida, gather every fact about the day it was signed — who was present, how much time you had, whether you saw a lawyer, and what disclosure you received. Under Fla. Stat. § 61.079(7), procedure at signing is the whole ballgame.

2. Do not rely on the size of the gap. A 99.9% disparity does not void a Florida prenup by itself. Hahamovitch (2015) confirms courts enforce deeply unequal agreements when properly executed. Build your case on defects, not fairness.

3. Sign prenups well before the wedding. If you are drafting one, execute it weeks ahead, not on the ceremony day. Same-day signings survive in Florida but invite avoidable duress and voluntariness attacks that add years of litigation.

4. Insist on independent counsel and written disclosure. Each spouse should have a separate attorney and receive a written financial disclosure or a signed waiver. That single step defeats most later challenges under Fla. Stat. § 61.079.

5. Understand what a prenup can waive. In Florida, a valid agreement can waive alimony under Fla. Stat. § 61.08 and override equitable distribution under Fla. Stat. § 61.075. Know the rights you are giving up before you sign.

If you signed a prenuptial agreement years ago and now face divorce in Florida — or you are weighing one before marriage — a Florida family law attorney can review the document against the standards in Fla. Stat. § 61.079 and tell you where you actually stand. You can also explore our Florida statute summaries and divorce guides to understand the framework before that conversation.

This article discusses recent news and provides general legal commentary. It does not constitute legal advice. Every case is unique. Consult a qualified family law attorney for advice specific to your situation.