Second Marriages and Prenuptial Coordination in Florida Estate Planning

Planning for a second marriage in Florida means coordinating a prenuptial agreement with your estate plan so that the surviving spouse and the children from a prior relationship are both provided for, instead of forced into competition after your death. Because Florida law gives a surviving spouse powerful default rights — a 30% elective share, homestead protections, and family allowances — a remarrying couple generally needs a properly executed prenuptial agreement plus a trust-based estate plan to override those defaults and direct assets the way they actually intend.

I have sat across the conference table from enough remarried clients to know the pattern. A successful person in their late fifties or sixties marries again. Each spouse arrives with their own house, their own retirement accounts, and — critically — their own children. Everyone is on good terms. Nobody wants to talk about death. And nobody realizes that, left alone, Florida’s statutes will quietly rewrite the result they assumed they had locked in.

Why Second Marriages Break the Standard Estate Plan

A first marriage with shared children is forgiving. If everything passes to the surviving spouse, the children usually inherit eventually anyway, because they are everyone’s children. A blended family has no such safety net. When you leave everything to your new spouse outright, you are trusting that person to leave it to your children later — after you are gone, after they may remarry again, after their own kids enter the picture. That trust is frequently misplaced, and even when it is honored, an unexpected lawsuit, a long-term-care event, or a remarriage can drain the inheritance you intended.

The conflict is structural, not personal. Florida law treats the surviving spouse as a protected creditor of your estate. Your children, by contrast, can be disinherited entirely. So if you do nothing — or if you do the wrong thing — the legal momentum runs toward the new spouse and away from the kids from your first marriage. High-net-worth families feel this most sharply, because the dollars in play are large enough to fracture relationships that looked solid for decades.

The Spousal Rights a Prenup Is Designed to Waive

Before you can plan around Florida’s spousal protections, you have to know exactly what they are. A prenuptial agreement is, in large part, a coordinated waiver of these rights:

• The elective share. Under Florida Statutes section 732.2065, a surviving spouse may elect to take 30% of the deceased spouse’s “elective estate” — a broad figure that reaches well beyond the probate estate to include certain trusts, jointly held property, retirement accounts, and even some lifetime transfers. You cannot disinherit a Florida spouse without a valid written waiver.
• Homestead rights. Article X, section 4 of the Florida Constitution and sections 732.401–732.4015 restrict how you may devise your homestead when you are survived by a spouse. Absent a waiver, the surviving spouse takes either a life estate or, by election, a one-half tenancy in common — which can trap a home you intended to leave to your children.
• The pretermitted spouse share. Section 732.301 gives a spouse you married after signing your will a share of your estate as if you had died without a will, unless your plan or a prenup addresses the marriage.
• Family allowance and exempt property. Sections 732.402 and 732.403 give the surviving spouse a family allowance (up to $18,000) and certain exempt personal property ahead of other beneficiaries.
• Intestate and other statutory shares. Plus the elective share’s interaction with probate, these create a web of rights that a generic will does not touch.

A spouse can waive all of these — but only in writing, signed in the manner required by section 732.702. Verbal promises and handshake understandings are worthless here.

How Florida’s Premarital Agreement Act Actually Works

Florida adopted the Uniform Premarital Agreement Act, codified at section 61.079. It governs agreements signed before marriage (a separate body of law covers postnuptial agreements). The statute is reasonably enforcement-friendly, but it sets real guardrails. A prenuptial agreement signed under section 61.079 is enforceable unless the challenging spouse proves either that the agreement was not signed voluntarily, or that it was unconscionable when executed and there was no fair disclosure of assets, no waiver of disclosure, and no adequate knowledge of the other party’s finances.

In plain terms, three things make a Florida prenup durable:

1. Full, written financial disclosure. Each spouse attaches a schedule of assets, debts, and income. Concealment is the most common reason a prenup gets unwound. Disclose more than you think you need to.
2. Independent counsel and breathing room. The agreement is far stronger when each spouse has their own attorney and signs well before the wedding — not the night before the rehearsal dinner. A document presented under time pressure invites a “not voluntary” attack.
3. Express estate waivers. A prenup that only divides property on divorce does nothing for your estate plan. To protect your children, the agreement must specifically waive the elective share, homestead rights, the pretermitted spouse share, family allowance, exempt property, and the right to serve as personal representative if that is your intent.

This last point is where many otherwise competent prenups fail blended families. People sign a “divorce prenup,” assume they are protected at death too, and they are not.

Coordinating the Prenup With the Estate Plan

A prenuptial agreement is a defensive document — it removes rights. Your estate plan is the offensive document that affirmatively gives. The two have to be drafted as a matched set, because a waiver with nothing built behind it can leave a spouse with far less than the couple actually agreed they would receive.

Use a marital or QTIP trust to provide for the spouse and preserve the remainder for your children

The classic solution for a high-net-worth second marriage is the QTIP trust (qualified terminable interest property trust). You leave assets in trust; your surviving spouse receives income, and often access to principal for health, support, and maintenance, for the rest of their life. When the spouse dies, whatever remains passes to your children — not to the spouse’s heirs, not to a future spouse. The QTIP also qualifies for the unlimited marital deduction, so it defers federal estate tax until the second death, which matters for estates approaching the federal exemption (around $13.99 million per individual in 2025, before the scheduled changes). A QTIP lets you be generous to your spouse and faithful to your children at the same time. Strategies like this — and broader for blended families — are precisely where coordination pays off.

Layer in life insurance to avoid forced asset sales

Often the cleanest fix is to fund the spouse’s share with life insurance held in an irrevocable trust, leaving the business, the brokerage account, or the family vacation property to flow directly to the children. Liquidity prevents the ugly scenario where a child and a stepparent must co-own and then fight over an illiquid asset.

Address the homestead deliberately

Homestead is its own minefield. If the couple lives in a home owned by one spouse, you must decide — in the prenup and the estate plan — whether the survivor gets a life estate, a right to live there for a term of years, or nothing. Because of the constitutional devise restrictions, this only works cleanly when homestead rights are properly waived and the disposition is structured correctly. Getting this wrong can hand your spouse a co-ownership interest in the house you meant for your kids. Revocable living trusts, drafted alongside your will, are the usual vehicle for keeping the residence out of probate and channeling it where you intend.

Don’t Forget Beneficiary Designations and Joint Accounts

This is the failure point I see most often, and it has nothing to do with the prenup itself. Retirement accounts, life insurance, and “transfer on death” accounts pass by beneficiary designation, completely outside your will or trust. A flawless prenup and an elegant QTIP mean nothing if your 401(k) still names your first spouse — or names your new spouse outright when the plan was to route those dollars to the kids. After any remarriage, audit every beneficiary form, every payable-on-death account, and every joint title. Coordinate the designations with the trust so the money lands where the documents say it should.

Note as well that ERISA-governed retirement plans give a spouse automatic rights that a prenup alone cannot waive; the spouse generally must execute a separate waiver after the marriage to redirect those benefits. That technical wrinkle catches a lot of people.

Long-Term Care and Asset Protection Considerations

A second marriage frequently occurs later in life, which means long-term care planning belongs in the same conversation. If one spouse later needs nursing-home care, the couple’s combined assets can be exposed to spend-down before Medicaid eligibility — potentially consuming the very inheritance you set aside for your children. Tools such as a are used in other states to shield assets while preserving eligibility, and Florida families pursuing comparable goals should coordinate any such planning carefully with the prenup, because moving assets to protect them can collide with the financial expectations the agreement created. Sophisticated planning treats the prenup, the trust, and the long-term-care strategy as one integrated structure rather than three separate errands.

A Practical Sequence for Remarrying Couples

1. Have the honest conversation about what each spouse keeps separate, what becomes shared, and what each person owes their own children.
2. Sign the prenuptial agreement well before the wedding, each spouse with independent counsel and full disclosure, including express estate-rights waivers.
3. Build the matching estate plan — revocable trust, QTIP or marital trust, and an updated will — so the waivers are backed by real provisions.
4. Realign every beneficiary designation, joint title, and POD/TOD account with the plan.
5. Revisit the whole structure after major events: a new child or grandchild, a sale of a business, a health diagnosis, or a move to or from Florida.

Done well, none of this is adversarial. It is the opposite — it lets two people who love each other stop worrying about a hidden zero-sum fight after one of them is gone. If you are remarrying in Palm Beach or anywhere in Florida and want your plan to actually hold up, speak with an estate planning attorney who handles blended-family and high-net-worth matters before you sign anything.

Frequently Asked Questions

Does a prenuptial agreement automatically protect my children's inheritance in Florida?

Not by itself. Many prenups only divide property in the event of divorce. To protect children from a prior marriage, the agreement must specifically waive the surviving spouse’s death-time rights — the 30% elective share, homestead rights, the pretermitted spouse share, and family allowance — under Florida Statutes section 732.702, and it must be paired with a trust-based estate plan that actually directs assets to your children.

Can a Florida spouse waive the elective share and homestead rights?

Yes. Florida law expressly allows a spouse to waive the elective share, homestead, intestate share, family allowance, and other statutory rights, but only through a written agreement signed with the formalities required by section 732.702. This can be done in a prenuptial agreement under the Uniform Premarital Agreement Act (section 61.079) or in a separate postnuptial waiver.

What is a QTIP trust and why is it used in second marriages?

A QTIP (qualified terminable interest property) trust pays income — and often principal for support — to your surviving spouse for life, then passes whatever remains to your own children rather than the spouse’s heirs. It provides for the new spouse, preserves the remainder for your kids, and qualifies for the marital deduction so estate tax is deferred until the second spouse’s death.

What makes a Florida prenuptial agreement enforceable?

Under section 61.079, a prenup is generally enforceable unless it was signed involuntarily, or was unconscionable when signed combined with a lack of fair financial disclosure. In practice, full written disclosure of each spouse’s assets, independent attorneys for both parties, and signing well before the wedding are the keys to a durable agreement.

Do beneficiary designations override my prenup and will?

Yes. Retirement accounts, life insurance, and payable-on-death accounts pass by beneficiary designation outside your will and trust. After remarriage you must update every designation to match your plan. ERISA-governed retirement plans also give a spouse automatic rights that typically require a separate spousal waiver signed after the marriage, not just a prenup.