I'll focus on maintaining the property and optimizing rent increases to ensure consistent returns over the years.

For the next billing cycle they increased my charges by $500 and did not notify me of the upcoming charge.

I recognize this is not the sole source of return, but the other sources have their return increase with smaller equity position. 

Your returns could be increased if you are willing to rent it by the room to individual students. 

While borrowing for a down payment is risky, increasing your savings will lower your interest rate.

However, if you're a W2 high income earner or business owner, I can't imagine it makes any sense to flip houses, mail mass post cards, wholesale, or build lead gen websites with the value of your time being better spent other places (such as learning about real estate and increasing your income through proven means), such as at your 9-5pm or growing your business, and your real estate is a long term process and you don't need "home run" deals to qualify or make it work.

- The increasing cost of damage repair and potential mold growth

Change all lighting to LEDTo increase revenue: 1.

People have failed twice now with the housing bubble and the recent meteoric increase in rates because they were gambling with the rates to save a percentage point.  

Lastly, if you’re currently taking a homestead exemption on property taxes, once that drops off (if you’re currently taking chose to transfer the exemption to your new home) your property taxes will likely increase $1k-$2k thus increasing your monthly mortgage.