Hey everybody. I own 8 rentals in the midwest. I've got a few properties that would really benefit from updated heating/cooling systems. 1 duplex I have has electric baseboard heat / window AC (Old 1880s property, no crawlspace or basement, no existing ductwork), another I'd like to add central air too, and a 3rd that has old gas wall furnaces / window AC that I would replace with mini splits (again no ductwork). 

My question is, let's say these upgrades cost 25k. I would plan on putting the cost of these improvements on a loan, monthly payment would be 1% of the balance so $250.00 a month. If I negotiated rental increases between the 3 properties (6 tenants) that matched or exceeded the $250, would you aggressively pay off the loan, or would you make the minimum payment using their money instead of paying it off with yours? One thing to consider is I am not interested in purchasing anymore buildings, I am "retired" as far as adding more doors to my portfolio.