If you're concerned with looking good in court, that's pretty simple.

He will have to sue in court and then try to prove his claim.

We can present the mold inspector report in court but dislike to give to her the report which we paid for it and she is so demanding.

The landlord can proceed with the eviction by asking the federal bankruptcy court to lift the stay.

https://www.kbtx.com/content/news/Texas-Supreme-Court-supports-short-term-home-renters-rights-in-new-decision-483989321.html

My tenant took another tenant to court over a complaint similar to this and the judge said "Contact your landlord".

Then, usually within a week or so of the court date, they come up with all the back rent, late fees, and eviction fees, and so we let them off the hook.  

In any event any action we take is at the lawyer's direction.Our lawyer basically says well, there's how the law is written and then there's how the law is interpreted and applied by each individual court.

I send out notices to units that smoking is not allowed and they know I took that tenant to small claims court and won, smaller town people talk.  

You could look into areas such as Loveland, Windsor, and Greely, but they are clearly not the same as Denver.