Second Marriages and Prenuptial Coordination in Florida: An Estate Planning Guide for Boca Raton

Planning for a second marriage in Florida means coordinating a prenuptial agreement with your estate plan so that your spouse, your children from a prior relationship, and your assets are all protected under the same set of documents. Done well, the prenup and the estate plan speak to each other: one waives the statutory rights a new spouse would otherwise inherit, and the other directs where your wealth actually goes. When these two documents are drafted in isolation, they contradict each other, and Florida law usually resolves the contradiction in a way you never intended.

For high-net-worth individuals in Boca Raton, this is rarely an academic exercise. A successful second marriage often joins two people who each arrive with grown children, a business interest or two, retirement accounts, and a homestead that has appreciated dramatically. The legal default rules in Florida were not written with that family in mind, and they can quietly override your wishes if you let them.

Why Florida’s Default Rules Create a Problem for Blended Families

Most people assume that a will controls everything. In a second marriage, it does not. Florida grants a surviving spouse several rights that exist independently of what your will says, and several that survive even if your will tries to disinherit them. Understanding these is the starting point for any coordinated plan.

The big four are the elective share, the homestead protection, the family allowance, and intestate succession. Each one can reroute assets toward a new spouse and away from children from a prior marriage.

• The elective share. Under Florida Statutes Chapter 732, Part II, a surviving spouse may elect to take 30% of the deceased spouse’s “elective estate” instead of whatever the will leaves them. The elective estate is broad. It reaches well beyond the probate estate to include revocable trust assets, certain pay-on-death accounts, jointly held property, and even some transfers made within a year of death. You cannot defeat it simply by funding a trust or retitling accounts.
• Homestead. Florida’s constitutional homestead protections restrict how you can leave your primary residence if you are survived by a spouse. If you have a spouse and a minor child, you generally cannot devise the homestead at all. Even without a minor child, a surviving spouse who is left the homestead receives a life estate (or may elect a 50% tenancy in common), which can trap the property and frustrate plans to pass it to your children.
• Family allowance and exempt property. A surviving spouse can claim a family allowance (up to $18,000 under section 732.403) and exempt property under section 732.402, both of which come off the top.
• Intestate share. If you die without a will, section 732.102 gives a surviving spouse a large share—and in a blended family where the decedent has children who are not also the surviving spouse’s children, the spouse takes one-half of the intestate estate, with the children splitting the rest.

The thread running through all of these is the same: Florida assumes you want to provide generously for a spouse. In a long first marriage, that assumption usually holds. In a second marriage entered later in life, it frequently does not, or at least not without limits you have negotiated in advance.

What a Prenuptial Agreement Can—and Cannot—Waive

A properly drafted Florida prenuptial agreement is the single most effective tool for overriding these defaults. Florida adopted the Uniform Premarital Agreement Act, codified at Florida Statutes sections 61.079, and it expressly permits couples to contract about the disposition of property on death and to waive spousal rights.

In an estate planning context, a prenup can waive:

• The elective share (section 732.702 specifically authorizes a written waiver of elective share, intestate share, and homestead rights);
• Homestead rights, which is essential if one spouse owns the marital residence and wants it to pass to children;
• The family allowance and exempt property claims;
• Rights as a beneficiary or personal representative under the other spouse’s existing estate documents;
• Claims against specifically identified separate property, such as a closely held business or pre-marriage investment accounts.

There are real limits. A prenup cannot validly waive child support for minor children, and the homestead waiver has technical requirements that trip up agreements drafted without Florida-specific care. Section 732.702 allows a waiver of elective share “after full disclosure” only after marriage, but before marriage no disclosure is required for the waiver to be valid—a counterintuitive distinction that matters enormously to timing and drafting. The agreement must also be in writing and signed, and it can be set aside if it was not executed voluntarily or was the product of fraud, duress, coercion, or overreaching.

Disclosure and the “Fair Disclosure” Trap

Even though a pre-marriage elective share waiver does not strictly require financial disclosure under the statute, prudent practice is to disclose anyway. Comprehensive, documented disclosure of assets and income makes the agreement dramatically harder to challenge later, when one spouse has died and the survivor’s children or your children are looking for leverage. In high-net-worth Boca Raton matters, we routinely attach detailed schedules of assets, liabilities, and income to the prenup so that no one can later claim ignorance. The cost of doing this is trivial compared to the cost of litigating an elective share claim.

Coordinating the Prenup With the Estate Plan

Here is where most plans break down. The prenup waives the spouse’s statutory rights. Good. But waiving a right is not the same as making a gift. If your prenup says your new spouse waives all rights to your estate, and then your will leaves them a third of your assets, both documents are valid—and the spouse simply takes the gift in the will in addition to having waived their statutory floor. The prenup did not cap what you could choose to give; it only removed what they could demand.

That is usually fine, because it is what couples want: a negotiated, voluntary provision rather than a statutory one. The danger is the reverse situation—where the prenup waives everything and the estate plan was never updated to put back whatever you actually intended for your spouse. We see widows and widowers left with nothing because the prenup did its job and the will or trust was never revised to provide the agreed-upon support.

Coordination means the following documents are drafted and reviewed together as one system:

1. The prenuptial agreement, which sets the floor by waiving statutory rights and identifying separate property.
2. A revocable living trust, often the centerpiece, which holds assets and directs them—frequently to a marital trust for the spouse’s lifetime benefit with the remainder passing to your children.
3. A pour-over will that captures any assets left outside the trust and reaffirms the prenup’s terms.
4. Beneficiary designations on life insurance, IRAs, and 401(k)s, which pass outside the will and trust entirely and are the single most common source of unintended outcomes in blended families.
5. Updated deeds and titling, particularly for the homestead and any jointly held accounts, to match the prenup rather than contradict it.

Retirement accounts deserve special emphasis. Under federal ERISA rules, a current spouse is generally the default beneficiary of a 401(k) and must consent in writing to be removed. A prenup signed before the marriage is not, by itself, a valid spousal waiver under ERISA—federal courts have repeatedly held that a person who is not yet a spouse cannot waive a spousal right that only exists by virtue of being a spouse. The practical fix is a post-marriage spousal consent form executed with the plan administrator. Miss this step and a carefully drafted prenup can be undone by a single retirement account.

The QTIP Trust: Providing for a Spouse Without Disinheriting Your Children

The classic blended-family structure is the QTIP trust—qualified terminable interest property. A QTIP gives your surviving spouse income (and often a residence) for life, qualifies for the unlimited marital deduction for federal estate tax purposes, and then directs the remaining principal to your children when your spouse dies. Critically, you name the remainder beneficiaries, not your spouse. This prevents the common nightmare in which everything passes outright to a new spouse who later leaves it to their own children, or to a subsequent spouse.

For families with taxable estates—an increasingly relevant concern as the federal estate tax exemption is scheduled to change—the QTIP also allows the surviving spouse to use the marital deduction while preserving the decedent’s remainder plan. Asset protection planning, lifetime gifting strategies, and irrevocable trusts often layer on top of this structure. The right combination depends on the size of the estate, the ages of the parties, and the degree of trust between the new spouse and the children. These are sophisticated tools, and the same trust principles that drive Medicaid and long-term care planning frequently overlap; firms that handle complex are well positioned to integrate the lifetime-care side of the plan with the death-transfer side.

When Long-Term Care Enters the Picture

Second marriages later in life raise a distinct issue: what happens if one spouse needs nursing care and the other wants to preserve assets for their own children. Florida’s Medicaid rules look at combined marital assets, which can force a healthy spouse to spend down resources earmarked for their kids. A prenup that keeps assets separate does not automatically protect them from a Medicaid spend-down, because Medicaid eligibility rules are federal and state regulatory, not contractual. Coordinating the prenup with irrevocable planning vehicles—similar in concept to a —is how sophisticated couples address this years before any care is needed.

Common Mistakes in Florida Second-Marriage Planning

• Treating the prenup as a one-time document. A prenup signed twenty years ago may not reflect today’s assets, a new business, or appreciated real estate. Review it when the estate plan is reviewed.
• Forgetting the homestead. The constitutional homestead rules override nearly everything, including your trust. If you want the house to go to your children, the spouse’s homestead waiver must be explicit and the title must be handled correctly.
• Leaving beneficiary designations stale. An ex-spouse or a “default to estate” designation on a $2 million IRA will defeat your entire plan. Florida’s revocation-on-divorce statute (section 732.703) helps in some cases but does not cover everything and does not reach ERISA plans.
• Ignoring the ERISA spousal-consent gap. As noted above, the prenup alone does not waive 401(k) rights.
• Failing to fund the trust. An unfunded revocable trust is just paper. Assets must be retitled into it for the QTIP and remainder provisions to work.

None of these are exotic problems. They are the predictable result of drafting documents one at a time, often with different professionals who never compared notes. The fix is process, not genius: build the prenup and the estate plan as a coordinated set, then review them together on a schedule.

Getting Started in Boca Raton

If you are entering a second marriage, the ideal sequence is to negotiate and sign the prenuptial agreement before the wedding, then revise your wills, trusts, deeds, and beneficiary designations immediately after the marriage so that the spousal consents and post-marriage waivers are valid. Both spouses should have independent counsel. Full financial disclosure should be documented even when not strictly required. And the entire package should be revisited every few years or after any major change in assets, health, or family circumstances.

Our firm coordinates prenuptial agreements with comprehensive Florida estate planning for blended families across Palm Beach County. You can review our approach to foundational documents on our wills page, learn how settlement of an estate works on our Florida probate page, or contact our Boca Raton office to discuss your situation. The goal is simple: protect your new spouse, protect your children, and make sure no default rule in the Florida Statutes gets the final word over your own wishes.

Frequently Asked Questions

Does a Florida prenuptial agreement override my will and trust?

A prenup and an estate plan do different jobs. The prenup waives the statutory rights your spouse would otherwise be able to demand, such as the 30% elective share and homestead protections under Florida Statutes section 732.702. Your will and trust then direct where assets actually go. The two must be drafted together, because a waiver in the prenup does not put assets back into your spouse’s hands. Only an affirmative gift in your will or trust does that.

Can a prenuptial agreement waive my spouse's right to my 401(k) in Florida?

Not by itself. Under federal ERISA law, a current spouse is the default beneficiary of an employer retirement plan and must sign a spousal consent form after the marriage to waive that right. Courts have held that a prenup signed before the marriage is not a valid ERISA waiver because the person was not yet a spouse. You must execute a separate post-marriage spousal consent with the plan administrator.

How does Florida's elective share affect a second marriage?

Florida’s elective share gives a surviving spouse 30% of the deceased spouse’s elective estate, which reaches far beyond probate to include revocable trust assets, certain joint accounts, and pay-on-death property. In a second marriage, this can divert a large share away from children of a prior relationship unless the spouse waives the elective share in a valid prenuptial agreement or postnuptial agreement.

What is a QTIP trust and why is it used in blended families?

A QTIP (qualified terminable interest property) trust provides income and often a residence to your surviving spouse for life, then passes the remaining principal to beneficiaries you choose, typically your children. It qualifies for the federal marital deduction and prevents assets from being redirected to your spouse’s heirs. It is the standard tool for supporting a new spouse while still protecting children from a prior marriage.

Do both spouses need separate attorneys for a prenup in Florida?

It is strongly recommended. While Florida law does not absolutely require independent counsel, having each spouse separately represented, with full written financial disclosure attached, makes the agreement far more difficult to challenge later on grounds of duress, coercion, or overreaching. In high-net-worth matters this safeguard is well worth the modest cost.