Billionaire Prenup Divorce Dispute Miami April 2026

A Miami billionaire's divorce is heating up over a prenup signed on his wedding day. This could change how fortunes are divided.

Miami-Dade County, FL - A contentious divorce is unfolding between billionaire Miguel Fernandez, 73, and his wife, Constance Tolevich Fernandez, 61. The core of the dispute centers on a prenuptial agreement, signed on their wedding day, which Mr. Fernandez seeks to enforce. His legal team has accused Ms. Tolevich Fernandez of accumulating debt after their marriage and alleges she was aware of her financial responsibilities, given her background in business.

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Miguel Fernandez, chairman of MBF Healthcare Partners, filed for divorce on March 20, asserting a prenuptial agreement signed on their wedding day is valid.

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Miguel Fernandez's lawyers allege that Constance racked up debt after moving to Florida and that he was unaware of her past debts when they married. They further contend that Ms. Tolevich Fernandez, having a background as a Chief Financial Officer and entrepreneur, was not naive regarding legal agreements.

The petition details that Mr. Fernandez provided his wife with "untold millions upon millions of dollars’ worth of designer clothing, handbags, shoes, and accessories." She also reportedly enjoyed extensive privileges, including private jet travel, use of opulent yachts, and residence in luxury properties.

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Florida operates under an 'equitable distribution' principle for assets acquired during a marriage. The state's statutes, particularly § 61.079, govern prenuptial agreements. Case law suggests that agreements signed weeks in advance are more likely to be upheld than those signed within days of the wedding. Ms. Tolevich Fernandez has not yet formally responded to the divorce petition.

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Echoes of Past Disputes

This situation is not unique among high-net-worth individuals. Similar disputes have emerged in cases involving significant fortunes.

  • Ken Griffin and Anne Griffin: In a 2014 case, Anne Griffin sought to void her prenup, alleging duress and claiming she signed it just hours before her rehearsal dinner after consulting a psychologist. Her lawyers argued she would only receive about one percent of her husband's wealth if the prenup stood. Ken Griffin's legal team denied these allegations.

  • Kenneth Griffin and Desiré Diaz-Griffin: Another Griffin divorce involved claims of over $35 million already transferred to the estranged wife, with the husband seeking to limit payouts based on their prenup. This case also involved disputes over child custody and relocation.

  • John Paulson and Jenny Paulson: The hedge fund billionaire, who amassed wealth betting against the housing market, divorced his wife of over 20 years without a prenup, indicating potential for a substantial financial settlement from his estimated $4.8 billion fortune.

  • David Geffen: The DreamWorks co-founder finalized a divorce from a partner 50 years his junior. Allegations of financial misconduct and grooming were reportedly part of the legal proceedings.

The article also references the divorce of Tony Pritzker and Jeanne Pritzker, which involved disputes over a multi-million dollar estate. Separately, the finalization of David Geffen's divorce from his younger husband, involving allegations of paid encounters and grooming, was also noted. The immense scale of some billionaire divorces, such as Jeff Bezos and Bill Gates, highlights the significant financial stakes often involved in such proceedings.

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Frequently Asked Questions

Q: Why are Miguel Fernandez and Constance Tolevich Fernandez divorcing in Miami?
Billionaire Miguel Fernandez, 73, filed for divorce from his wife Constance Tolevich Fernandez, 61, on March 20, 2026. The main issue is a prenuptial agreement signed on their wedding day that Mr. Fernandez wants to enforce.
Q: What is the main problem with the prenup in the Fernandez divorce?
Mr. Fernandez's lawyers say Constance Tolevich Fernandez took on debt after they married and that she knew her financial duties because she has a business background. They claim she was aware of the agreement's terms.
Q: What did Miguel Fernandez provide for his wife before the divorce?
The divorce papers state that Mr. Fernandez gave his wife millions of dollars in designer clothes, bags, and shoes. She also used private jets, yachts, and lived in luxury homes.
Q: How does Florida law handle divorce and prenups?
Florida divides property earned during marriage fairly. Prenuptial agreements are allowed by law, but courts look closely at when they were signed. Agreements made further from the wedding date are usually seen as more valid.