Hello, and thanks for your question. Attorney Eric Amat Y Leon answered:

1) If you're married, this would occur through the divorce action; 2) if you're not married, note in Colorado you could be common law married - which would then require a divorce; 3) if neither, and both of you are on title, there is the option for a partition action; 4) if only one person is on title, a lawsuit may still be possible for an equitable claim (such as unjust enrichment). The best advice is to consult with an attorney to understand your options.