You can buy something like a cheap Arlo camera system at Costco and pay for the Internet connection in one of your units.You could ask law enforcement to do routine drive-bys or safety checks.

Starting March 2025, Freddie Mac and Fannie Mae will enforce new lease standards for multifamily properties seeking financing, aiming to bolster tenant protections.

Market the property, rent it quickly, enforce late fees, and most importantly, treat it like the business it is without getting personally invested.  

It may take time but it should start the necessary corrective/enforcement actions.

We explored the idea of allowing it but for only 6months, but we think once the person is there for that long we can't enforce signed language about an exit date.

The legitimacy of the contract probably only really matters if you have to go to court/arbitration to enforce it.That said, your title company would be a good place to start in terms of getting a legal review, I'm sure they have a real estate lawyer(s) on staff or retainer depending on the state.

I identified a lucrative opportunity to lease a property to law enforcement but have no idea on what legal clauses others in the past have included in their agreements.

I was formerly in law enforcement and saw a lot of this kind of thing with people repeatedly calling in for burglars in the attic, imagined break-ins, etc. 

Treasury’s Financial Crimes Enforcement Network.

Condo Karen is much worse than some former builder retired into a code enforcement role.