Colorado

Cohabitation agreements in Colorado: the state where you might already be married Cohabitation agreements in Colorado: the state where you might already be married

Cohabitation agreements in Colorado: the state where you might already be married

Every other state we practice in tells unmarried couples the same thing: you have no marital rights, whatever you intended. Colorado tells them something else: you might be married and not know it. Colorado remains one of the few states recognizing common-law marriage — no license, no ceremony, no paperwork required — and under the Colorado Supreme Court's modern framework, a common-law marriage exists where the couple mutually agreed to enter a marital relationship and conducted themselves accordingly: how they held themselves out, shared finances and lives, what they celebrated and symbolized, assessed flexibly with no single factor required.

The consequences are total. A common-law marriage is a full marriage: ending it requires a full dissolution — property division under the appreciation rule, maintenance exposure, the works — and at death it confers complete spousal inheritance rights. Common-law marriage claims surface at exactly two moments: breakups and funerals. Both are terrible moments to discover you were married.

The Colorado double duty

Which is why a Colorado cohabitation agreement does two jobs no other state's version has to:

Job one — create the rights you want. For couples who are genuinely not married, Colorado's defaults are like everyone else's: title controls, no support obligation, no automatic inheritance, no medical authority. The agreement builds the structure — the home (shares, contributions, buyouts, survivor occupancy), accounts and debts, contribution imbalances, exit mechanics — exactly as it would in Denver or Louisville alike.

Job two — document what you are and aren't. A well-drafted Colorado agreement states expressly whether the parties do or do not intend a marital relationship — the precise fact the Hogsett inquiry investigates. It won't mechanically defeat a later common-law claim (courts weigh conduct too, and no contract makes perjury impossible), but a contemporaneous, signed, mutual declaration of non-marital intent is powerful evidence — often the difference between a dismissed claim and eighteen months of litigation about what two people "understood." Couples on the other side of the line should note the mirror image: if you intend common-law marriage, document that too, and spare your partner the funeral-stage proof problem.

The exception as everywhere: children. Parentage, parental responsibilities, and support run independent of marital status.

What belongs in the agreement

Everything in the standard architecture — home, money, contributions, coordination with wills, medical durable powers, and beneficiary designations (Colorado's intestacy gives an unmarried partner nothing; the documents are the safety net: estate planning) — plus the Colorado-specific clauses: the marital-intent declaration, periodic reaffirmation mechanics for long relationships, and a conversion protocol (if you later marry — or decide you already are — a UPMAA agreement takes the handoff, appreciation rule and all).

Write down what you are

Brown Carrington drafts Colorado cohabitation agreements for both jobs — the rights you're creating and the status you're declaring.

Straight answers.

Could we already be common-law married in Colorado?

If you've mutually agreed you're married and lived accordingly — held out as spouses, entangled finances, the conduct pattern — possibly yes. It's fact-driven, decided after the fact, and worth resolving on paper now rather than in court later.

Will a cohabitation agreement prevent a common-law marriage claim?

It's strong evidence of non-marital intent, not an absolute shield — conduct still counts. Signed declarations plus consistent conduct is the defensible combination.

Are cohabitation agreements enforceable in Colorado?

Yes — ordinary contract enforcement, and Colorado's common-law backdrop makes the written record more valuable here than anywhere in our footprint.

Does this apply to platonic co-owners?

The property architecture, identically. The marital-intent clause won't hurt either — Colorado is the one state where even roommates have occasionally ended up in Hogsett hearings. Paper beats testimony.