In a second marriage, your estate plan can protect two families at once, or quietly shortchange one of them. You may want to provide for your new spouse while ensuring your children from a prior marriage inherit what you intend. A prenuptial agreement for inheritance is often the centerpiece of that balance, but in Florida it cannot stand alone.
A Florida prenup in a second marriage has to do three jobs at once: keep premarital and business assets out of equitable distribution, define what a surviving spouse receives, and coordinate with your will and any trusts so the documents do not undo each other. Drafted in isolation, one instrument can quietly defeat the other.
This tutorial walks through why a second marriage puts your children's inheritance at risk, whether a prenuptial agreement for inheritance actually protects them, what Florida Statute § 732.702 allows a spouse to waive, how a prenup and a will can undermine each other, when a second marriage prenup can be challenged, and what a coordinated review looks like.
In Florida, the marriage certificate does more estate planning than most couples realize. Once you marry, your spouse becomes an heir at law, gains homestead protections, and can claim the elective share, family allowance, and exempt property. Assets you earmarked for your children can therefore be redirected at your death by operation of law, not by anything you signed.
That tension has no natural balance. You want your new spouse provided for during life and after your death. You also want the principal to reach the children from your prior marriage. Florida's default rules favor the surviving spouse, so silence makes the choice for you.
Consider the typical second-marriage balance sheet: premarital savings, a closely held business, retirement accounts, a will drafted before the wedding, adult children with expectations, and a spouse who may be decades younger and likely to outlive you by a wide margin. Each of those assets sits inside the conflict.
Most second-marriage prenups, however, are negotiated as divorce documents. Death provisions get one paragraph, or none, and the will is never updated to match what the agreement says.
A second marriage prenuptial agreement has to do three jobs at once: keep premarital and business assets out of equitable distribution, define what a surviving spouse receives, and coordinate with your will and any trusts so the documents reinforce rather than undo each other. The usual failure is not a missing document. It is documents that contradict each other, a pattern that often surfaces as a family law dispute before it ever reaches probate, as our frequently asked questions about divorce in Florida reflect.
A prenup is not a transfer document. It limits what a surviving spouse can claim, which preserves the asset pool your will and trusts then direct to your children. The estate plan does the giving; the agreement does the protecting.
Under Florida Statutes section 732.702, a spouse may waive the elective share, intestate share, pretermitted share, family allowance, exempt property, and homestead claims. The waiver must be a signed writing executed correctly and must actually describe the rights it covers. A general clause may not reach every right, so itemizing each one is safer. The statute permits waivers before or after marriage, though execution and disclosure requirements differ, and those specifics should be confirmed against the current text before signing anything.
Children from a prior marriage are not parties to the agreement. They generally cannot enforce it unless the agreement names them as intended beneficiaries, and that is a drafting decision, not a default. Separately, an omitted child's pretermitted share question under Florida law is analyzed independently of the spousal waiver. A prenup does not solve it, and no waiver signed by your spouse extinguishes your child's own rights.
The strongest structure pairs a valid statutory waiver with a will or trust that names the child and controls when and how the money is distributed. The waiver clears the spouse's claims; the estate documents build the inheritance. Next, we look at exactly which rights section 732.702 lets you waive.
Section 732.702 lets a spouse waive, wholly or partly, the rights Florida would otherwise give them at your death. The list is specific: elective share, intestate share, pretermitted share, homestead, exempt property, family allowance, and claims under the Florida Uniform Disposition of Community Property Rights at Death Act (ss. 732.216 through 732.228). Read the current text of section 732.702.
Execution matters as much as the list. A waiver must be a signed writing witnessed by two subscribing witnesses, and one made after the marriage requires fair disclosure of the estate. Waivers may be signed before or after the wedding, and they reach only the rights actually described. That is why an itemized waiver beats one clause purporting to waive everything: a catch-all can still operate broadly, but the itemized list shows the survivor knew what was surrendered. Confirm both subsections against the 2026 statute before drafting specific language. Courts examine what each party knew and disclosed, the same inquiry that shapes divorce litigation involving infidelity.
Partial waivers are the practical tool: the survivor can waive the elective share yet keep a stated payment, a life estate in the residence, or a fixed sum funded by insurance or a trust. Out-of-state waivers valid where signed are generally honored here, a jurisdictional wrinkle similar to court appearances by out-of-state defendants. Two mechanics surprise clients. Property already passing to the survivor, from insurance to a joint account, can be credited against an elective share, and electing homestead is a separate step from electing the elective share. Florida probate rules updated effective October 1, 2026 affect current procedure.
Job One protects the assets from a divorce claim. Job Two decides what the survivor actually takes at death, and it is here that most second marriage prenups are thinnest.
Work through the options deliberately: an outright bequest, a stated dollar amount, a life estate in the residence, a life insurance policy, an annuity, or income from a trust funded at death. Every option carries a cost and a funding source. Insurance and trusts are often the only vehicles that give the survivor a defined benefit without reaching the children's principal.
Under Florida Statutes section 732.702, a signed, properly witnessed waiver can extinguish the elective share, family allowance, exempt property, and homestead claims. Treat the waiver as a clean slate, then grant back only the package you intend, whether that is a fixed sum, a residence for life, or income for a term. An itemized waiver is safer than a single clause purporting to waive everything.
Homestead deserves its own review. Homestead protection operates independently of the elective share, and a devise of homestead can create competing claims between a surviving spouse and children. The waiver, the deed, and the trust must be read together, never in isolation.
Property passing outside the will can be credited against an elective share, including life insurance, retirement plan designations, joint accounts, and trust interests. Beneficiaries named by default may satisfy a claim the waiver was meant to eliminate.
Avoid open-ended commitments. An undefined "reasonable support" clause or discretionary principal access can swallow the children's remainder interest and generate litigation costing more than the gift itself. That package holds only if the will and trusts say the same thing, which is Job Three.
Once the survivor's share is defined, the will and any trusts must be redrafted to implement the same numbers. The rules cut both ways: a will can be changed at any time, while a valid prenup is generally irrevocable once executed. Specific bequest terms in a prenup can supersede contrary will terms, but a will that explicitly grants spousal rights can control instead. Left unreconciled, the newer document can quietly grant away exactly what the agreement preserved.
Fund the children's share through a revocable living trust with a pour-over will. Name a trustee who is not the surviving spouse or a beneficiary, add spendthrift provisions to shield distributions from creditors and divorce, stagger distributions by age or milestone rather than one lump sum, and define the standard for any distributions to the survivor so discretion is bounded.
Where the goal is to support a spouse without surrendering principal, a marital or QTIP-style trust pays the survivor income for life, with the children taking the remainder. The principal stays in the children's line while the survivor's standard of living is protected.
Beneficiary designations, transfer on death and payable on death instructions, joint tenancy and tenancy by the entirety, and life insurance all pass outside the will. Each can defeat a carefully drafted prenup if it is never updated to match.
Because the prenup and the trust are separate instruments, the agreement should confirm in writing that the waiver reaches trust-held assets where that is the intent, and should define the survivor's rights to trust distributions rather than leave them implied.
Job Three is where the plan either holds together or comes apart, which is why the next section examines the specific ways a prenup and a will cancel each other out.
Coordination fails in specific, predictable ways. Consider four hypotheticals drawn from common Florida fact patterns.
Illustration one. A second marriage prenuptial agreement validly waives the elective share. Years later, the client signs a new will leaving the surviving spouse a life estate in the residence plus income from the residue. The waiver stands, but the will rebuilds much of what it removed, because gifts under a will are not the same as statutory claims.
Illustration two. The agreement caps the survivor at a fixed dollar amount. The trust, however, names the survivor as trustee with unlimited discretion to invade principal. The cap becomes open-ended, since the trustee controls the distribution standard.
Illustration three. The agreement waives homestead, and the residence is placed in a trust for the children. Yet the deed still reads as joint tenants with right of survivorship, or a joint account funds the survivor directly. Survivorship transfers override the trust for those assets.
Illustration four. An older prenup refers to a will that has since been replaced. The orphaned provision no longer matches the estate plan and hands the survivor an argument that the earlier intent should control.
The shared lesson: the prenup governs the spouse's statutory claims, while the will and trust govern the gifts. Only the combination produces the result the client intends. Next, consider how these agreements treat children from a prior marriage.
Coordination is the standard. The next question is who can enforce the plan once the client is gone.
Children from a prior marriage are not parties to the prenup and generally cannot enforce it unless the agreement names them as intended third-party beneficiaries. Where their protection is the point, add enforcement, notice, and disclosure language so the children and the personal representative can compel compliance rather than petition as strangers to the contract.
Stepchildren have no automatic inheritance rights in Florida; they inherit only if adopted or named in a will or trust. A plan that stays silent leaves the survivor's side of the family with no share and no claim. The rights also run separately: waivers bind spouses, not children. A survivor's waiver does not extinguish a child's own rights, and a pretermitted share question is analyzed independently.
Name an independent trustee or co-trustee who is not the surviving spouse. Limit the survivor's powers as trustee, and use a distribution standard that distinguishes support from principal invasion, so income needs do not quietly consume the children's remainder.
Keep documents consistent, preserve the disclosure record that supported the waiver, and store executed originals where the children and the personal representative can find them. Enforcement disputes can become litigation, which is why our family law practice covers matters from child custody in Florida to high-net-worth prenuptial agreements, informed by courtroom work such as victim rights during plea negotiations and sentencing in Florida.
Keeping the disclosure record intact is also your first line of defense, because a waiver executed after marriage requires fair disclosure of the estate. Attaching asset and liability schedules to the prenup, and having each party acknowledge them in writing, narrows the room for a later claim that the waiver was uninformed.
Challenges typically rest on fraud, coercion, or duress, or on a failure to follow statutory execution requirements. Because the controlling provisions of sections 732.702 and 61.079, and the case law applying them, evolve over time, verify the current statute text before relying on any particular exception.
Procedural safeguards that tend to hold:
If the waiver falls, the default rules return. Elective share, homestead, family allowance, and exempt property claims can all revive, shrinking the children's plan in exactly the way the agreement was meant to prevent.
Drafting hygiene matters for the same reason. The divorce provisions, the death provisions, and the disclosure recitals should be internally consistent, because enforceability is judged on the agreement as a whole rather than clause by clause. An elderly prenup with a dated recital, or a death provision that contradicts the property schedule, invites an argument that the document never meant what it says.
That is why these instruments are best drafted and reviewed as a coordinated set rather than one at a time.
Enforceability is judged on the whole agreement, and consistency across documents is a process, not a single draft. A coordinated review runs in five steps.
List separate property, business interests, retirement and insurance accounts, real estate, and every existing estate document. Then separate the probate assets from those passing outside the will by joint title or beneficiary designation. That second list is where plans usually leak.
Set the surviving spouse's share, choose its funding source (insurance, trust income, a stated sum), and decide what the children receive, when, and through which trust structure. Minor children raise parallel questions about Developing an Effective Co-Parenting Plan.
The prenup, will, trust, deeds, and beneficiary designations should be drafted to one plan in one review cycle, not sequentially over years.
Revisit after the marriage, a birth or adoption, a business sale or refinance, a move, and on a set interval. Stale documents are where conflicts hide.
Choose counsel who handles high-net-worth prenuptial and postnuptial agreements and understands how those agreements interact with probate law. Mayersohn Law represents high-net-worth clients in family law matters, including prenuptial and postnuptial agreements, in all 67 Florida counties, and the firm's owner, Leah Mayersohn, has practiced for more than 20 years.
With that process in view, the questions below address the concerns clients raise most often about second marriage prenups and inheritance.
The questions below address the issues that arise most often when a second marriage prenup is drafted with children in mind.
A valid waiver executed under Florida Statutes § 732.702 can remove the elective share, intestate share, pretermitted share, family allowance, and exempt property. Outright disinheritance generally requires that waiver plus estate documents that leave the spouse nothing, and homestead limits what a will alone can accomplish.
No, not automatically. The prenup and the trust are separate instruments. The agreement should expressly address trust-held assets and define the survivor's distribution rights; otherwise the trust documents may control.
Yes. Homestead is among the rights § 732.702 lists as waivable. But homestead and elective share are distinct elections with different consequences, so the deed, the waiver, and the will must be reviewed together.
Alternatives include a postnuptial agreement after the marriage, a trust funded for your children, life insurance naming the survivor, and separately titled accounts. Without a waiver, default spousal claims remain available.
Intestacy favors the surviving spouse first. Under Florida Statutes § 732.102, when one or more descendants are not the spouse's descendants, the spouse takes one-half and the children share only what remains. That is why the will and trust matter as much as the prenup.
Those answers share a common thread: in a second marriage, a prenuptial agreement is an estate-planning instrument, not just a divorce document. It is what decides how much your children can still inherit.
Treat it as one plan with three jobs, drafted in a single cycle:
Execution details decide whether any of that holds. Check disclosure recitals, witnessing, and election mechanics against the current text of sections 732.702 and 61.079 rather than relying on older forms or secondhand summaries.
Then maintain the set. Revisit after the marriage, after a birth or adoption, after a business sale or refinance, and after a move. Keep beneficiary designations and deeds consistent with the documents that name your children; the non-probate layer can quietly redirect more than the will ever controls.
If your children's inheritance is the priority, have the prenup, the will, and the trusts reviewed together before the wedding. Reviewing them one at a time afterward is how a coordinated plan becomes three documents pulling in different directions.