Colorado Prenuptial & Postnuptial Agreement Attorney
What a Well-Drafted Marital Agreement Actually Does
A prenuptial or postnuptial agreement doesn't signal distrust, it creates clarity. Before the emotional weight of a dispute, you and your partner decide together how property, debt, and support will be handled if the relationship ends. That conversation, formalized in a legally enforceable document, removes ambiguity at the worst possible time.
Colorado follows the Uniform Premarital and Marital Agreements Act (UPMAA), which governs both prenuptial and postnuptial agreements and sets specific requirements for enforceability. A prenup signed without independent legal counsel, under pressure, or without adequate financial disclosure can be challenged and thrown out.



Prenuptial Agreements in Colorado
A premarital agreement, commonly called a prenup, is executed before marriage and takes effect upon marriage. In Colorado, it must be in writing, signed voluntarily by both parties, and accompanied by a fair and reasonable disclosure of each party's financial circumstances.
Common reasons couples pursue a prenup in Colorado include:
- Protecting a business interest or professional practice built before marriage
Preserving inherited assets or family property for the next generation - Defining spousal maintenance rights and limits in advance
- Clarifying how pre-marital debt will be treated during and after marriage
- Protecting children from a prior relationship's financial interests
- Addressing property acquired in a prior common law marriage
Timing matters. A prenup drafted weeks before the wedding, with no time for independent review, is far more vulnerable to an enforceability challenge than one completed months in advance.
What Can, and Cannot, Be Included
Colorado law gives couples significant flexibility in what a prenuptial or postnuptial agreement can address. It also draws firm lines.
What Marital Agreements Can Cover
- Division of specific property and assets upon divorce or death
- Characterization of property as separate or marital
- Spousal maintenance: whether it will be paid, how much, and for how long
- Rights to manage and control specific property during the marriage
- Disposition of property upon death (in coordination with estate planning)
- Any matter not in violation of public policy or Colorado statute
What Marital Agreements Cannot Cover
- Child custody, parenting time, or decision-making responsibility. Courts retain authority over these regardless of any agreement
- Child support obligations. Courts will not enforce provisions that waive or limit a child's right to support
- Terms that incentivize divorce or penalize a spouse for filing
- Provisions made under fraud, duress, or without meaningful financial disclosure
Why Enforceability Starts at Drafting
The most common reason marital agreements fail in court is procedural, not substantive. The terms themselves may be perfectly reasonable, but if the process was flawed, a judge can set the entire agreement aside.
An enforceable Colorado prenup or postnup requires:
Step 1:
Full Financial Disclosure
Both parties must provide a fair and reasonable disclosure of their assets, liabilities, and income. Hiding or understating financial information is the fastest path to an unenforceable agreement.
Step 2:
Independent Legal Counsel
Each party should have their own attorney review the agreement. Colorado courts look closely at whether both parties had the opportunity to consult independent counsel, and whether they were given adequate time to do so.
Step 3:
Voluntary Execution
The agreement must be signed without coercion or undue pressure. Courts examine the circumstances of signing, including timing relative to the wedding, when enforceability is challenged.
Step 4:
Written and Signed
Colorado requires all premarital and marital agreements to be in writing and signed by both parties. Oral agreements are not enforceable.
How I Approach Marital Agreement Work
I've practiced exclusively in Colorado family law since 1993. I understand how courts in this state read marital agreements: what language holds up, what provisions invite challenge, and where boilerplate drafting creates risk that won't surface until a divorce proceeding years later.
My approach is direct. I review your financial picture, identify what needs to be addressed, and draft language that is precise and defensible. If I'm representing the reviewing spouse rather than the drafting party, I read the agreement critically and negotiate terms that are genuinely fair.
I work with business owners, professionals, individuals with inherited assets, and couples entering second marriages with children from prior relationships. Each situation calls for a different set of provisions, and I don't use one-size-fits-all templates.

Frequently Asked Questions About Colorado Prenups and Postnups
How do I get a prenup in Colorado?
Both parties should retain separate attorneys, exchange full financial disclosures, and allow adequate time — ideally several months before the wedding — for negotiation and review. The agreement must be in writing and signed by both parties before the marriage takes place. Starting the process early is the single most important step toward an enforceable agreement.
Are prenups enforceable in Colorado?
Yes, when properly executed. Colorado follows the UPMAA, which provides a clear framework for enforceability. Agreements that include full financial disclosure, are signed voluntarily, and give both parties a reasonable opportunity for independent legal review are generally upheld. Agreements that lack these elements are vulnerable to challenge.
What's the difference between a prenuptial and a postnuptial agreement in Colorado?
A prenuptial agreement is signed before the marriage and takes effect when the couple marries. A postnuptial agreement is signed after the wedding. Both are governed by the same UPMAA standards in Colorado, and both can address property division, debt characterization, and spousal maintenance.
Can a prenup address spousal maintenance in Colorado?
Yes. Colorado law permits parties to define, limit, or waive spousal maintenance rights in a premarital or marital agreement, provided the terms are not unconscionable at the time of enforcement and the agreement was entered into voluntarily with adequate disclosure.
Can a prenup cover child custody or child support?
No. Colorado courts retain full authority over parenting time, decision-making responsibility, and child support regardless of what a marital agreement says. Any provision attempting to predetermine these matters will not be enforced.
Do both parties need their own attorney for a prenup to be valid?
Colorado law does not strictly require separate counsel, but it strongly encourages it — and courts scrutinize agreements where one party lacked independent representation. Having your own attorney review the agreement is the most reliable way to demonstrate that you understood what you were signing.
With more than 30 years of Colorado family law practice, I've seen what happens when marital agreements are drafted carelessly — and what it costs to litigate enforceability during a divorce. A well-constructed prenuptial or postnuptial agreement is a practical act of clarity, not a concession to pessimism. If you're considering one, let's talk through what it should cover.