You could also consider selling this property and investing in a state where laws treat landlords better and evictions don't take so long.

These should be spelled out in their lease and or local and state laws. 

Your state laws will dictate next steps.

This is why I emphasize education of real estate principles, law and finance are essential for the real estate investor.  

If you charge a per day rate it gets more complicated and you run the risk of potentially breaking laws in some places about late fees.

The 30 day move out notice should suffice but you will have to check with the local laws.

It seems in order of increasing profitability:LTR < MTR < STRGiven that I'm based in the Denver metro area, unless I'm occupying the property as my primary residence, STR is out the question, as Denver has cracked down on the short tern rental laws.

Will depend on several factors like the type of property, type of tenants, your risk tolerance, other assets you own, your estate planning, laws where the property is located, etc.

This may or may not apply, but there is a concept in the law that says if a contract is unclear that is should be interpreted in favor of the party that did not draft/initiate it.

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