Usually having a servicing company helps the lender to consider that.  

Providing superior service, cheaply.

if he performs a service for you, just pay him for it. 

Nature campaigns, direct mail, text services, accounting, etc all in one place. 

Get a maintenance contract on your hard systems that feature 2x a year service.

DSCR (Debt Service Coverage Ratio) loans are popular for real estate investors because they focus on property cash flow rather than personal income.

@Maxwell Silva - In marketing / advertising, products and services are not expected to be sold the first time a potential customer is exposed to them.

Year 0: ($2,000 - $1,700) x (1 + 2%)^0 / (1 + 5%)^0 ≈ $300 in today’s buying power.Year 5: ($2,000 - $1,700) x (1 + 2%)^5 / (1 + 5%)^5 ≈ $260 in today’s buying power.Year 10: ($2,000 - $1,700) x (1 + 2%)^10 / (1 + 5%)^10 ≈ $225 in today’s buying power.Year 15: ($2,000 - $1,700) x (1 + 2%)^15 / (1 + 5%)^15 ≈ $194 in today’s buying power.So, if you purchase property in a city where rent increases at a slower pace than inflation, the amount of goods and services you can buy will decrease over time due to inflation.Here is what I recommend:Purchase in a city that possesses the following characteristics.Significant and sustained population growth.Rapid and sustained appreciationBalance negative cash flow, interest rate buydown, and increased down payment to create an acceptable cash flow situation today.Refinance when rates fall to increase cash flow.

The math behind Real Estate is not that complicated, Revenue - expenses and debt service = cash flow. 

Dealing with warranty service is a pain in any situation but when you also have to deal with a tenant on top its even worse.