By the time a prenup reaches the signing table, most couples think the hard part is over. In enforcement litigation, the signing is often where the case is won or lost. Florida's baseline formality is deceptively light — in writing, signed by both parties — but layered on top are the probate code's two-witness rule for estate waivers, the practical demands of proving voluntariness decades later, and the question courts ask first: did each side have real access to independent counsel? Here is how a bulletproof execution actually runs.
The legal minimum — and why we never stop there
Section 61.079(3), Florida Statutes, requires only that a premarital agreement be in writing and signed by both parties; the marriage itself supplies the consideration, and no notary or witness is demanded for the divorce-law provisions to bind. But the legal minimum is a floor built for the best-case future — the one where nobody ever challenges anything. We execute for the other future. Three reasons to exceed the floor every time: the probate code — waivers of elective share, homestead, and other spousal death rights under section 732.702 must be "signed by the waiving party in the presence of two subscribing witnesses," and nearly every serious prenup contains those waivers, so the two-witness ceremony is effectively mandatory; portability — some states demand acknowledgment before a notary or stricter formalities, and clients move, so we sign to the strictest common denominator; and evidence — witnesses and a notary convert "that's not how it happened" into an argument against three disinterested people and a stamped certificate.
Anatomy of the signing ceremony
A Mack Law execution is deliberately unhurried and deliberately documented:
| Element | Why it is there |
|---|---|
| Final documents delivered in advance | Both parties receive the execution version — agreement plus completed disclosure schedules — days before signing. Nobody reads anything for the first time at the table. |
| Both parties sign the same complete document | Every page initialed, schedules attached and initialed, no "signature pages to follow." Detached signature pages are how authenticity disputes are born. |
| Two subscribing witnesses | Satisfies § 732.702 for the estate waivers and provides live testimony of a calm, voluntary signing if ever needed. |
| Notarial acknowledgment | Not required by § 61.079 — included for portability to stricter states, self-authentication, and the evidentiary weight of the certificate. |
| Acknowledgment recitals signed at the table | Each party confirms in writing: disclosure received and reviewed, opportunity for independent counsel, no threats or promises outside the document, adequate time to consider. |
| Duplicate originals | Two fully executed originals — one for each spouse's separate safekeeping — plus counsel's complete file. See enforcement for where they should live for the next 30 years. |
None of this is theater. Each element answers, in advance, a question that gets asked in every challenge: Did they know what they were signing? Did they have time? Were they pressured? Is this the real document?
Independent counsel: the question courts ask first
Florida does not require each party to have a lawyer — and no experienced drafter takes comfort in that. When a court weighs voluntariness and overreaching, the presence or absence of independent counsel is among the most powerful facts in the record. An agreement negotiated between two represented parties is a contract; an agreement presented by a represented party to an unrepresented one is a target. Our rules when we draft: the other party is urged in writing to retain their own lawyer — their choice, not a name we hand-pick; they are given enough time for that review to be real; if terms change, counsel gets the revisions, not a surprise at the table; and if they still decline representation, they sign a detailed acknowledgment that the opportunity was offered and declined. That acknowledgment does not make an unrepresented signing as strong as a represented one — nothing does — but it closes the "I never had a chance to see a lawyer" door.
And a bright line the industry blurs: one lawyer cannot represent both of you. A single attorney "doing the prenup for the couple" is a conflict dressed as a convenience. When we draft, we represent one party, say so on page one, and insist the other side's review be genuinely independent. When we are the reviewing counsel, that engagement — what to look for, what to negotiate — has its own page.
What independent review actually covers
Review is not a signature-witnessing service. Competent review counsel reads the agreement against the statute (are the waivers within what Florida permits — no child-support terms, no temporary-support waivers?); tests the disclosure (are the schedules complete, recent, and specific enough to rely on — and do they raise questions the client should ask?); models outcomes (what would this client actually receive at year 5, 15, 30, at death, compared with Florida's defaults — the comparison most unrepresented signers never see); negotiates the fixable (sunset provisions, support floors, the home, life insurance); and documents the advice, including, where the client insists on signing against advice, a letter saying so. That letter protects the client's choice — and, ironically, the agreement, since a signing after documented adverse advice is the opposite of an uninformed one.
Execution mistakes we see in agreements drafted elsewhere
When prenups come to us for review or for defense in litigation, the same execution defects recur: signing dates days or hours before the ceremony, with no earlier drafts in anyone's file to prove longer negotiation; schedules "to be attached later" that never were; one witness or none, leaving the estate waivers exposed under section 732.702; a notary block from another state's form that certifies nothing under Florida law; a spouse who signed at home, alone, with no record of who presented the document or what was said; missing pages and non-matching initials between the parties' copies; and no executed originals locatable twenty years on — only an unsigned Word file. Every one of these is cheap to prevent and expensive to litigate. The cure is process: our checklist runs from final-draft delivery through vaulting the originals, and the file we keep is built to be Exhibit A in a challenge we hope never comes.
After the signing: the follow-through that is part of execution
Three tasks remain after the ink dries, and skipping them undoes real money. The ERISA consents: survivor benefits under employer retirement plans can only be waived by a spouse, on plan forms, after the wedding — the prenup obligates the signing; calendar it for the month after the honeymoon, and keep the stamped confirmations with the originals. The estate-plan alignment: wills, trusts, and beneficiary designations should be updated to match the agreement — a prenup that waives the elective share while a stale beneficiary form leaves everything to an ex does not fail, but it litigates. And the records: both originals vaulted separately, counsel's file preserved, and a note in each spouse's estate-planning binder saying where everything lives. Execution is not an event; it is the first day of the agreement's long life — the subject of our enforcement page.
Common questions
For its divorce-law provisions, no — section 61.079 requires a writing signed by both parties, nothing more. We notarize anyway, and add two subscribing witnesses, because the estate-rights waivers inside most prenups carry the probate code's two-witness formality, because other states you may someday live in expect acknowledgment, and because a notarized, witnessed document is dramatically harder to attack with a story. The extra ten minutes at signing buys decades of authentication.
Florida law broadly recognizes electronic signatures, and remote online notarization exists for many documents — but for an instrument meant to survive a hostile challenge in an unknown future state, we sign wet-ink, in person, witnessed. The marginal convenience of e-signing is not worth becoming the test case for how a 732.702 "presence" requirement or another state's formality treats your platform of choice. One afternoon in a conference room is the conservative play.
The opposite — engaged review counsel making substantive requests is evidence the process was real, and most requested changes are modest. We would rather sign a revised agreement five days out, after documented negotiation, than an unchanged draft signed in silence a month earlier. If the changes are genuinely major and time is genuinely gone, the honest options are a focused signing-date plan or a deliberate postnup after the wedding — not a pressured signature.
You cannot force representation — you can only make the opportunity undeniable. That means a written recommendation to retain counsel, real time to do it, an offer to accommodate their lawyer's schedule, and a signed acknowledgment if they decline. Some drafting spouses offer to pay for the other side's independent review; done transparently, with counsel of the other party's own choosing, courts have viewed that as evidence of fairness rather than control — and it removes the last practical excuse.
Not necessarily — the statutory floor is low, and many imperfectly executed agreements are still enforceable. But if your agreement has thin disclosure, no witnesses, or a rushed history, consider a ratification: a short amendment, executed now with full formalities and refreshed schedules, in which both spouses reaffirm the agreement. Done during calm times, it converts a vulnerable document into a strong one. We review existing agreements on a flat fee and tell you plainly whether yours needs the tune-up.
An agreement is only as strong as its signing.
Call (407) 749-1034 or request a confidential consultation — drafting, independent review, and ratification of existing agreements, on quoted flat fees.
General information about Florida law — not legal advice, and no attorney-client relationship is created by reading it. Authorities referenced include § 61.079(3), (7), Fla. Stat., § 732.702, Fla. Stat., and Florida decisions on voluntariness and overreaching in marital agreements (verified July 2026). Every situation turns on its own facts.