Adjustable rate allowed but restrictions on the amount of increase and frequency of rate adjustments.The loan cannot include a balloon.Seller must not be the builder.More Than 3 Properties You Must Use a MLO and Comply With All Regulations Such As:The loan cannot include a balloon.

My favorite sponsor is vertically integrated and local their portfolio.I also agree that historic levels (40-year highs) of inflation, interest rate increases, and government intervention is/are clear black swan events. 

I am not saying that it is a bad idea or not worth it.It appears that you are doing just fine.

It’s not worth it.

As long as you pick the right areas in San Antonio, your rental will do well and your rents will continue to increase year over year.2.

Could it greatly increase your DTI ratio?  

Would increase by at least 50% to be safe!

A 3% increase in rent on a $3,000 a month rental is more cash in hand than on a $1,000 a month rental.

Is the interest rate, location, and possible(likely) appreciation of this home worth keeping it?

If you are in an inexpensive area that is growing, you can often get both cash flow AND great appreciation.With that in mind, I thought it worth sharing this fresh US Census data.