However, with a SFH you will lower your standards when vacancy arises more than one month as you have no income coming in to male that payment.  

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.

You should have 25% down payment + closing costs, + an oh Sh*t fund on top of that. 

Generally speaking, with SFR or small multis, I just rely on the lease/rent roll (and some form of proof of payment; i.e. bank statements, deposit receipts, tax returns, etc.). 

I financed this property using down payment funds from 403B and a local commercial bank. 15% down from personal funds. 85% down from community commercial bank. 3yr balloon, 20yr amortization, 7% interest rate.

Unless you've done substantial improvements to the building or used a large down payment when buying, it's unlikely this will work.Perhaps your best move is to find a new primary residence that is 2-4 units and repeat the process.

This would be an opportunity to discuss deferred payments and a 5 year balloon. 

I cash flow them to buyers on lease options with a hefty option payment up front to me.

For the property I purchase, I’d like to keep my monthly mortgage payments at $2,000 or less.I prefer a turn-key property since this is my first rental, and I want to start generating monthly cash flow immediately without the delay of repairs or managing two mortgages.

Make that rent payment out to you and pick up a roommate.