If any part of this agreement is found invalid or unenforceable by a court of competent jurisdiction, the remainder of this agreement shall be interpreted so as to reasonably affect the intention of the parties."

Forget for a moment that different lenders will have overlays or Fannie/Freddie guidelines and might differ on their interpretation of how to add in LT Leases, but your STR business is likely an LLC or S-Corp.

This is just what I interpreted from my lender.

They are all available online: AB68, AB881, SB13, AB587, AB670, AB671.There are areas were they are not easy to interpret.  

Regrettably the mantra "America First" is not at all understood by the by the American consumers and each individual has a different interpretation of what it means.

You are interpreting the advice as abuse. 

It's more about how you interpret the data, how you execute on that information, and your ability to convert the deal.

Or could it be interpreted as illegal eviction if they become uncooperative and say refuse the new keys etc.

To ensure (1) the contract is enforceable (2) the contract addresses possible occurrences (3) applicable state laws are applied and (4) the opportunity for variance in interpretation is minimized, it would be advantageous to either use a contract that is provided by the state Real Estate Commission, as in Texas or that is drawn up by a attorney specializing in real estate law in the state in question.If your using a contract because you downloaded it off the internet for free you are probably not really in business, and your chances for success will reflect this.  

I'm no attorney but that's my general interpretation of the law, but I would advise you discuss with an attorney like @Bob Floss IIYou could always work with a licensed broker until you got your license.