Postnuptial Agreement Lawyer in Houston, TX

A postnuptial agreement lawyer in Houston drafts a written Texas agreement, signed during your marriage, that decides which property is separate, which is shared, and how both would be divided if the marriage ends. It replaces community property defaults with terms you both choose.

Maybe you started a business, received an inheritance, or realized you never signed a prenup. Francisca F. Manchac has helped Houston couples for more than 18 years, and she has litigated her own prenuptial agreement, so she drafts every marital agreement with the courtroom in mind. Call (832) 263-0935 to schedule a free consultation.

Francisca F. Manchac | Licensed in Texas since 2009 | Last Updated: October 2026

TX and AZ Attorney Francisca Manchac

Key Takeaways

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Texas law calls most postnups partition or exchange agreements, and they turn some or all of a couple's community property into each spouse's separate property.

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A Texas postnup can't be used to dodge a creditor who already had a claim when the agreement was signed.

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Converting separate property into community property follows its own Texas rules, including specific disclosure about the legal effect of the change.

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The firm represents one spouse and recommends independent counsel for the other, which makes the agreement much harder to challenge later.

Who Needs a Postnup in Houston?

You need a postnuptial agreement if you're already married in Texas and want something other than community property rules to decide what's yours.

That includes Houston spouses who started or grew a business, received an inheritance, moved to Texas from another state, or simply never signed a prenup. A postnup also helps couples who want to set clear money rules after a big change in income or careers. Each one is drafted under Texas law as part of the firm's prenuptial, postnuptial, and cohabitation agreement services. The firm drafts, negotiates, and reviews agreements. It does not handle divorces, custody cases, or court challenges to an agreement, and it refers that work to trusted litigation counsel.

Common Situations Handled

Most Houston couples sign a postnup after something changes that the default rules would handle badly.

Starting or Growing a Business

A company started during marriage is usually community property. A postnup can set who owns it and how its value is treated, alongside your business formation documents.

Receiving an Inheritance

An inheritance is separate property, but the income it earns is community. A postnup can keep both separate and prevent mixing.

You Skipped the Prenup

Many couples ran out of time before the wedding. A postnup lets you set the terms you meant to sign.

Moving to Texas

Couples from non-community-property states often find Texas treats their property differently. A postnup sets clear terms under Texas law.

A Career or Income Change

When one spouse leaves work to raise children or income jumps, a postnup can set fair support and savings terms.

Rebuilding Trust After a Money Problem

Some couples sign a postnup after hidden debt or spending. Clear written rules can help both spouses move forward.

Why Hiring a Postnuptial Agreement Lawyer Matters

A postnup has to sort out property that's already mixed together, and small drafting gaps decide whether it holds up. The time to close those gaps is before anyone signs.

What Goes Wrong Alone

A free online form skips disclosure, fails to identify the property it covers, or uses the wrong Texas rules for converting property.

What Experience Adds

Francisca litigated her own prenup. She knows which clauses get attacked and builds the disclosure record that keeps an agreement enforceable.

How Outcomes Differ

A clear agreement keeps a divorce short and private. A weak one becomes the first thing both sides fight about.

“

Francisca really listened and helped me to understand what I needed to include in my prenup. I really appreciated being able to text the office when I had a question.

Christine · Marital agreement client

Who Is Involved?

A postnup involves you, your spouse, and two separate attorneys, each with a defined role. Here's who does what.

You

Share your goals and finances, and decide what you're asking for.

Your Spouse

Shares their own finances and signs voluntarily after their own review.

Your Attorney

Francisca represents you, drafts the agreement, and negotiates changes.

Your Spouse's Attorney

Reviews the draft for your spouse and advises them independently.

Your CPA or Advisor

Helps trace and value a business, accounts, or property for disclosure.

What Your Postnuptial Agreement Includes

Your engagement produces a signed Texas marital property agreement with full disclosure attached. You also get clarity: both of you know what's separate, what's shared, and why.

What You Receive

  • Partition or Exchange Agreement: Divides community property into each spouse's separate property, in whole or in part.
  • Financial Disclosure Schedules: List each spouse's assets, debts, and income, attached to the agreement.
  • Spousal Support Terms: Limit, waive, or set alimony, including springing clauses tied to set conditions.
  • Estate Plan Coordination: Lines up the agreement with your will, trust, and beneficiary forms.

What You Avoid

  • Default Community Rules: Texas law deciding what's shared instead of the two of you.
  • Business Valuation Fights: Arguments over how much a company grew during the marriage.
  • Commingling Disputes: Fights over whether separate money got mixed into shared accounts.
  • A Drawn-Out Divorce: A long, public court fight over property you could have settled now.

Are Postnups Enforceable in Texas?

Yes. A Texas postnup is enforceable when it's in writing, signed by both spouses voluntarily, and backed by fair disclosure. These three rules matter most for Houston couples.

2 Directions: Partition or Conversion

Under Chapter 4 of the Texas Family Code, spouses can partition or exchange community property so each share becomes separate property, and can agree that income from separate property stays separate. Spouses can also convert separate property into community property, but that agreement must identify the property and meet its own disclosure rules.

2 Grounds: When a Texas Postnup Fails

A court won't enforce a postnup if a spouse proves they didn't sign voluntarily. It also fails if it was unconscionable when signed and that spouse got no fair disclosure of the other's property and debts, didn't waive disclosure in writing, and had no adequate knowledge of them. Full disclosure schedules close that door.

Existing Creditors: Their Claims Survive

A partition or exchange agreement can't defeat the rights of a creditor who already had a claim when you signed, if the agreement was meant to dodge that creditor. A postnup works for planning ahead, not for moving assets away from a debt you already owe.

What Happens After You Call The Law Offices of Francisca Manchac, PLLC

Your postnup moves through five steps, from a free video consultation to a signed agreement, with a flat fee set before work begins.

01

Free Consultation and Intake

Book a Prenuptial or Postnuptial consultation and complete the intake form at least 24 hours ahead. Francisca learns your goals and what changed.

02

Financial Disclosure

You and your spouse list your assets, debts, and income. Francisca turns them into schedules attached to the agreement.

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Drafting and Review

Francisca drafts the agreement and walks you through every clause in plain language. You can text the office with questions.

04

Spouse's Attorney Review

Your spouse's own attorney reviews the draft, and Francisca negotiates any changes with them.

05

Signing and Recording

You both sign before a notary. If the agreement covers real estate, it can be recorded in the county property records.

Common Questions About Postnuptial Agreements in Houston

Something else on your mind? Call or text (832) 263-0935.

How much does a postnup cost in Houston?

Francisca drafts postnuptial agreements for a flat fee, so you know the full cost before work begins and never pay by the hour for questions or revisions within the scope you agree on. The fee depends on how much your agreement needs to cover, such as a business, real estate, an inheritance, or spousal support terms. Your spouse pays their own attorney for an independent review. Your first step is a free 30-minute virtual consultation, where Francisca reviews your goals and quotes your flat fee.

What's the difference between a prenup and a postnup?

Timing. A prenuptial agreement is signed before the wedding and takes effect when you marry. A postnuptial agreement is signed during the marriage, so it deals with property you may already share. In Texas, both must be in writing and signed by both partners, and both face the same basic enforcement test. The practical difference is that a postnup often has to sort out property that's already mixed together, which makes careful tracing and disclosure more important. If your wedding is close and a prenup feels rushed, a postnup signed soon after is a common choice.

Is a postnup as good as a prenup in Texas?

In most cases, yes. Texas applies the same core test to both: an agreement fails only if a spouse signed involuntarily, or if it was unconscionable and that spouse had no fair disclosure and no adequate knowledge. A postnup can be just as strong as a prenup when it's drafted well. The extra work is in the details, because a postnup often has to separate property that's already been mixed, such as a joint account funded partly with inheritance money. Clear schedules and independent counsel do most of the protecting.

How do I get a postnup in Texas?

You start by hiring an attorney to represent you, then share your finances with your spouse. Your attorney drafts the agreement, attaches disclosure schedules listing each spouse's assets, debts, and income, and sends the draft to your spouse's attorney. The two attorneys negotiate any changes. When you both agree, you each sign the final agreement before a notary. With Francisca, the process runs by video from start to finish, with a coordinated signing at the end. If it covers real estate, it can then be recorded.

Can a postnup protect my business?

Yes. A Texas postnup can make your share of a business your separate property, set how its value is treated, and keep future growth or profits separate. Without one, a business started during marriage is usually community property, and its value can become the biggest fight in a divorce. Your postnup should match your company agreement or bylaws, especially on what happens to ownership if you divorce. Francisca also handles business formation, so both documents can work together. If you already have a company agreement, Francisca can review it at the same time.

Can a postnup keep my inheritance separate?

Yes, and it often should. In Texas, an inheritance is already your separate property, but the dividends, interest, and rent it earns during marriage are community property. Inheritance money also loses its separate status in practice when it's mixed into joint accounts and can't be traced. A postnup can keep the income separate and confirm which accounts and property stay yours. Francisca's separate property and inheritance protection work focuses on exactly these issues. Keeping inherited money in an account in your name alone helps too.

Can I use a free Texas postnup form?

You can, but it's risky. Texas doesn't require an attorney, and a written agreement signed by both spouses can be valid. Free forms often skip disclosure schedules, fail to identify the property they cover, or mix up the different Texas rules for partitioning community property and converting separate property. Any of those gaps gives a spouse an opening to challenge the agreement later. A flat-fee agreement drafted by an attorney costs far less than litigating a weak one in a divorce.

Do we both need our own lawyers for a postnup?

Texas law doesn't require it, but the firm strongly recommends it. One attorney can't represent both spouses in a postnup, because their interests differ. When each spouse has independent counsel, it's much harder for either one to claim later that they didn't understand the agreement or signed under pressure. Francisca represents one spouse and works with the other spouse's attorney to reach terms you both accept. If your spouse's lawyer already sent you a draft, Francisca can review it for you.

What can't a postnup do in Texas?

A Texas postnup can't reduce a child's right to support, and it doesn't decide custody or parenting time. Courts decide those based on the child's best interest at the time. A postnup also can't be used to defeat an existing creditor's claim, and it can't require anything illegal. Clauses about chores or personal behavior generally won't be enforced and can make a court skeptical of the whole agreement. Property, debts, business interests, spousal support, and rights at death are all fair game.

Can we change or cancel a postnup later?

Yes, with another written agreement signed by both spouses. Neither spouse can change it alone. Couples often update a postnup after a new business, a large inheritance, or the birth of a child. Because a postnup changes who owns what, it should also line up with your estate plan. If your property is now separate, your will or revocable living trust should reflect that, so each spouse's separate property passes the way they intend. Francisca can update both at the same time.

Areas We Serve

The Law Offices of Francisca Manchac, PLLC serves married couples across Harris, Fort Bend, and Montgomery Counties from 3333 Allen Pkwy Unit 300, Houston, TX 77019, with consultations and drafting reviews by video. An agreement that covers a Houston home can be recorded with the county clerk where the home sits, such as the Harris County Clerk's Office. Visit the Houston office page to see every service available to Houston clients.

Harris County

Fort Bend County

Montgomery County

Image about Houston Texas and the surrounding areas

Get Started With a Postnuptial Agreement Lawyer in Houston

The best time to set clear terms is while you and your spouse agree on them. Start with a free 30-minute virtual consultation with Francisca. Call (832) 263-0935 or book online.