It was a Freddie Mac loan the bank we used was Capital One but many banks can use the Freddie Mac program

@Matthew Adams: Stephanie Riley has a mortgage program specifically designed for people like you.

Any amortization program/app on the planet will tell you p3&I payment for any amount of money at any interest rate.

By starting with a primary you can also take advantage of lower interest rates and lower down payment programs.

That is the governing contact between you and the tenant after you buy the property.  

However, this might require some programming on my end -- if you know how to program something like this, could you walk me through the steps (I assume it's Java?)

I read that there's maybe a grant or program out there that could assist this.

I think there are approximately 13 per day.You can also search Google for "Online Rent Payment" and get a slew of options.There are also property management programs available with collection built in.

Agency = government backed loan, like Fannie MaeFor a rent property, interest expense is 100% deductible. 

There are a variety of programs out there.