Marital Agreements 101: What Prenups, Postnups & MSAs Actually Do (Florida)

If you’re getting married (or already married) and want clarity around money, property, or future “what-ifs,” a marital agreement is simply a roadmap. In Florida, these agreements come in three common forms:

Prenuptial Agreement (“Prenup”) – signed before the wedding.
Postnuptial Agreement (“Postnup”) – signed after you’re already married.
Marital Settlement Agreement (“MSA”) – the written contract that resolves issues in a divorce or paternity case.

Why people in Brevard County use them

Clients from Melbourne to Titusville and Palm Bay often want:

Asset clarity: What happens to a business, home, retirement, or inheritance?
Debt protection: Keeping a spouse’s student loans or credit cards from becoming your problem.
Expectations around support: Whether alimony can be limited or waived (with important caveats).
Reduced conflict later: Clear terms mean fewer surprises if life takes a turn.

What can a prenup/postnup cover?

Property rights: Who owns what now and in the future, including growth and appreciation.
Management & control: Who can sell or mortgage property.
Spousal support: Whether alimony will be paid, limited, or waived (subject to Florida rules).
Estate planning coordination: How the agreement fits with your will, trusts, and beneficiary designations.
Attorney’s fees: Whether the “prevailing party” gets fees if there’s a dispute.

What can’t it do?

Timesharing/parenting: You can’t predetermine child custody or child support in a way that blocks a court’s duty to protect children’s best interests.
Anything illegal or against public policy: For example, incentives that encourage divorce or provisions that would leave someone destitute may be vulnerable.

How Florida courts look at these agreements

Courts across Viera, Rockledge, and Suntree apply basic contract rules with family-law safeguards:

Voluntariness: No coercion, duress, or pressure tactics.
Disclosure: Full and fair financial disclosure (or a valid waiver) matters—especially for alimony and property terms.
Clarity: Clear, unambiguous language is more likely to be enforced.
Fairness at signing (and sometimes at enforcement): While “fairness” doesn’t mean equal, extreme unfairness paired with poor disclosure can sink an agreement.

Common myths we hear

“Prenups are only for the ultra-wealthy.” Not true. Anyone with a home, retirement, a business, or children from a prior relationship can benefit.
“A prenup guarantees zero alimony.” Not automatically. Terms can be limited or waived, but there are guardrails, and a court can scrutinize extreme outcomes.
“We can lock in child custody terms now.” Parenting plans must remain modifiable based on children’s best interests.
“If we don’t disclose every detail, we’re fine if we both sign.” Poor disclosure is one of the most common reasons courts refuse to enforce parts of an agreement.

When to consider one

You’re marrying with significant premarital assets or an existing business in Melbourne or Rockledge.
You expect a large inheritance in Viera or Suntree and want to keep it separate.
This is a second marriage and you want to protect children from prior relationships.
You and your spouse want to set expectations to reduce conflict if separation happens.

Practical tips (that save headaches later)

Start early (especially for prenups). Last-minute deals invite challenges.
Use separate attorneys. Independent advice on both sides strengthens the agreement.
Attach schedules of assets/ debts.
Coordinate with your estate plan.
Sign correctly with proper formalities and keep good records.

Ready for a clear plan?

Call Rhoden Law Group for a courtesy consultation with an experienced family law attorney. We handle All Things Family across Melbourne, Viera, Suntree, Rockledge, Palm Bay, and Titusville. 321-549-3162 (call/text) or use the contact form on this site.