Look Unless it’s in your lease I would tell them that if they want it colder then go buy themselves a window unit and if they really fight you about it go buy them one and take the cost directly out of their security deposit .

See if one of them would go with you to the property to assess the work and how much it would cost to repair the house and capitalize on the "forced appreciation".Or, you can perform "sweat equity"...doing some of the work yourself if you have some experience with renovating and repairing property.Also, be sure to soak up the free knowledge here. 

You're very trusting to allow (insist) on your tenants performing their own maintenance.

I know that'd net me $0 w/ needing to fill a security fund on the side.So I'm curious.

Women need financial security.)

Keep plenty of cash (or highly liquid, safe securities) reserves - I keep a minimum of $50k for my 10 units.Your cash flow is first line of defense.

My niece works there and she said don't get fooled the pressure to perform and deliver results is high and many people stay late.

Others will say to pay it off as quickly as possible and use the cash flow to start saving for your next property that way it's really hard for things to go south on you.If your multi-unit is residential I would recommend trying to secure a bank loan since you can get them at a low interest rate for 30 years and then enjoy the cash flow and start looking at other investments. 

Banks generally will not foreclose on a performing note but every institution has its own policies.

If I am not able to secure financing, I will lose this deal.