Colorado
Family agreements and planning under Colorado law Family agreements and planning under Colorado law
Family agreements and planning under Colorado law
Colorado's planning landscape contains two features found nowhere else in our footprint, and they bookend this page. First: Colorado still recognizes common-law marriage — the only state we practice in that does — which means some Colorado couples are married without knowing it, with full divorce and inheritance consequences attached. Second: Colorado governs marital agreements under the modern Uniform Premarital and Marital Agreements Act (UPMAA), the most protective agreement statute in our six states. Between those poles: an appreciation rule that makes agreements unusually valuable here, and a modernized adoption framework. The map is below; the linked pages do the work.
Marital agreements under the UPMAA
Since 2014, Colorado premarital and marital (postnuptial) agreements run under one statute — C.R.S. §§ 14-2-301 to -313 — with consumer-protection-grade formation rules: both parties must have access to independent legal counsel (defined with real teeth: time to locate and afford a lawyer, or a meaningful waiver), adequate financial disclosure, and — if a party is unrepresented — a conspicuous plain-language notice of the rights being waived. Certain terms are void outright: provisions penalizing a party for initiating divorce, limiting child support, or restricting domestic-violence remedies. Agreements that clear the statute, though, are robustly enforceable — and in Colorado they carry extra weight, because the default they modify includes the appreciation rule: without an agreement, the growth of your separate business during the marriage is marital property. A Colorado prenup is how that rule becomes optional. Full treatment: prenuptial and postnuptial agreements in Colorado.
Common-law marriage and cohabitation: Colorado's double feature
Colorado recognizes common-law marriage under the refined Hogsett v. Neale framework — mutual agreement to be married plus conduct manifesting it, assessed flexibly (no checklist of joint accounts required, no cohabitation minimum). The consequences are total: a common-law marriage is a full marriage, dissolved only by a full dissolution, with property division, maintenance, and inheritance rights attached. Which gives Colorado couples a planning question no one else in our footprint faces: unmarried partners here need agreements both to create the rights they want and to document the marriage they're deliberately not entering. A well-drafted Colorado cohabitation agreement does both jobs. Details: cohabitation agreements in Colorado.
Adoption in Colorado
Colorado adoption runs through the Children's Code (Title 19, Article 5): stepparent, kinship, custodial, agency, and — long established here — second-parent adoptions. Colorado features expedited procedures for stepparent and kinship placements, relinquishment counseling requirements before a birth parent's rights are surrendered, and, for unmarried fathers, notice procedures tied to paternity filings. Details: adoption in Colorado.
The planning connection
Colorado's estate statutes do broad automatic cleanup at divorce — C.R.S. § 15-11-804 revokes revocable dispositions to a former spouse, beneficiary designations included (ERISA plans excepted, as everywhere). Until the decree, though, a spouse's rights run at full strength — including in a common-law marriage a court hasn't yet declared. Coordination: estate planning and divorce in Colorado.
Plan while it's easy
Brown Carrington drafts Colorado agreements against the state's two big defaults — the appreciation rule and common-law marriage — with UPMAA-grade formation.
Straight answers.
Are Colorado prenups enforceable?
Yes — the UPMAA makes properly formed agreements durable, and its formation checklist (counsel access, disclosure, notices) is precisely what our drafting builds in.
Could I already be common-law married in Colorado?
Possibly — if you and your partner mutually agreed you're married and lived accordingly. It's fact-driven and litigated after the fact, usually at breakup or death. If the question worries you, that's the signal to get documents.
Can we sign a postnup in Colorado?
Yes — the UPMAA governs marital agreements signed during marriage under the same protective framework.
Services
Cohabitation agreements
Cohabitation Agreements in Colorado. Cohabitation Agreements in Colorado: The State Where You Might Already Be Married
Learn moreEstate Planning
Estate Planning in Colorado. Divorce and Your Estate Plan in Colorado: What Changes, What Doesn't
Learn morePrenuptial & postnuptial agreements
Prenuptial & Postnuptial Agreements in Colorado. Prenuptial and Postnuptial Agreements in Colorado: The UPMAA Standard
Learn moreAttorneys

Dorothy Walsh Ripka
Partner

Stephanie Exner
Attorney