In that case they are definitely short timers and you know it upfront.

The time of the notice must be at least as long as the interval between the time rent is due or three months, whichever is less.This may be easier to ready by looking at the MN AG Landlord tenant handbook page 23 https://www.ag.state.mn.us/brochures/pubLandlordTe...

Even a newbie will eventually make money if you maintain it and keep it

Ours has wording about having to maintain the premises in the same condition as they received it If they don’t we can evict 

I would give them notice that they can leave if they want, but if they remain they MUST ventilate the bathroom properly when they use it and also maintain the cleanliness of the house. 

This is part of the expectation for maintaining the property. 

First it is easier to maintain.  

Now you are the evil capitalist landlord, and some days it feels like everyone who doesn't outright hate you is out to cheat you somehow.... yet you still have to hope for the best, plan for the worst, and maintain professional relationships with everyone. 

Notified HOA as it was coming from the decks they maintain & pay for. 

The intent was to maximize small businesses' ability to maintain liquidity, retain their employees and recover from this health crisis as quickly as possible.