I think if they wanted to push the issue in court you would probably be required to allow them to sublease.

You can put in a contract but no court will enforce it. 

The court costs are +- $150 depending on the jurisdiction and the information can be entered on a form provided by the Justice of the Peace

I want to evict due to the damage and extra people.I called the company I typically have used in the past to file and handle my rent court stuff.

Thus you have legal standing and you could threaten to file "Notice of Memorandum" on the property if your investor does not paid what she had "agreed" to.The court is In Your Favor since Colorado is both "Judicial and Nonjudicial" state.

Most don't understand how to fight/make arrangements with tenants/courts/fines/ etc, nor would they be willing to do so.

I work from home and my time is pretty free so taking off a few days for small claims court isn't a problem, so if they don't pay that'll be my next step...Thank you for the input.

Even though it is a "hassle" to go to court, think of it as your "Continuing Education" in the landlord biz. 

@Kevin WoodA few suggestions :-Make sure the 3 day notice and the eviction when filed includes "and all other occupants- You can call the JP Court and they should tell you which Precinct or you can go to the voting precinct maps -7 years for free probably doesn't motivate a tenant too much to accept cash for keys but throw $500 out there and see-No lease should be an issue as you gave 30 days notice. 

All the up coming court sells are posted months in advance on the local master commissioner site.